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<div class="title">histogram.hpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2020 Debabrata Mandal <mandaldebabrata123@gmail.com></span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#ifndef BOOST_GIL_HISTOGRAM_HPP</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#define BOOST_GIL_HISTOGRAM_HPP</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/concepts/concept_check.hpp></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/gil/metafunctions.hpp></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/gil/pixel.hpp></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <boost/mp11.hpp></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <boost/type_traits.hpp></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <boost/functional/hash.hpp></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <array></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <iostream></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <tuple></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <map></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <unordered_map></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span><a class="code" href="namespaceboost.html">boost</a> { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span>detail {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">template</span> <std::size_t Index, <span class="keyword">typename</span>... T></div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">inline</span> <span class="keyword">auto</span> hash_tuple_impl(std::size_t&, std::tuple<T...> <span class="keyword">const</span>&)</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  -> <span class="keyword">typename</span> std::enable_if<Index == <span class="keyword">sizeof</span>...(T), <span class="keywordtype">void</span>>::type</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// terminating case</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">template</span> <std::size_t Index, <span class="keyword">typename</span>... T></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">inline</span> <span class="keyword">auto</span> hash_tuple_impl(std::size_t& seed, std::tuple<T...> <span class="keyword">const</span>& t)</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  -> <span class="keyword">typename</span> std::enable_if<Index != <span class="keyword">sizeof</span>...(T), <span class="keywordtype">void</span>>::type</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  boost::hash_combine(seed, std::get<Index>(t));</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  hash_tuple_impl<Index + 1>(seed, t);</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... T></div>
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<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1hash__tuple.html"> 74</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1hash__tuple.html">hash_tuple</a></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">auto</span> operator()(std::tuple<T...> <span class="keyword">const</span>& t) <span class="keyword">const</span> -> std::size_t</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  std::size_t seed = 0;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  hash_tuple_impl<0>(seed, t);</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> seed;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> };</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Pixel, std::size_t... I></div>
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<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="group___histogram-_helpers.html#ga9834216fad8903ba7e79413cf3fc7539"> 88</a></span> <span class="keyword">auto</span> <a class="code" href="group___histogram-_helpers.html#ga9834216fad8903ba7e79413cf3fc7539">pixel_to_tuple</a>(Pixel <span class="keyword">const</span>& p, boost::mp11::index_sequence<I...>)</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  -> decltype(std::make_tuple(p[I]...))</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> std::make_tuple(p[I]...);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple, std::size_t... I></div>
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<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa"> 98</a></span> <span class="keyword">auto</span> <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">tuple_to_tuple</a>(Tuple <span class="keyword">const</span>& t, boost::mp11::index_sequence<I...>)</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  -> decltype(std::make_tuple(std::get<I>(t)...))</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> std::make_tuple(std::get<I>(t)...);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple, std::size_t... I></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">bool</span> <a class="code" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">tuple_compare</a>(Tuple <span class="keyword">const</span>& t1, Tuple <span class="keyword">const</span>& t2, boost::mp11::index_sequence<I...>)</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> {</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  std::array<bool, std::tuple_size<Tuple>::value> comp_list;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  comp_list = {std::get<I>(t1) <= std::get<I>(t2)...};</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">bool</span> comp = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">for</span> (std::size_t i = 0; i < comp_list.size(); i++)</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  comp = comp & comp_list[i];</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> comp;</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93"> 125</a></span> <span class="keywordtype">bool</span> <a class="code" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">tuple_compare</a>(Tuple <span class="keyword">const</span>& t1, Tuple <span class="keyword">const</span>& t2)</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> {</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::size_t <span class="keyword">const</span> tuple_size = std::tuple_size<Tuple>::value;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">auto</span> index_list = boost::mp11::make_index_sequence<tuple_size>{};</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> <a class="code" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">tuple_compare</a>(t1, t2, index_list);</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1tuple__limit.html"> 137</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1tuple__limit.html">tuple_limit</a></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">static</span> constexpr Tuple (min)()</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  {</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> min_impl(boost::mp11::make_index_sequence<std::tuple_size<Tuple>::value>{});</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">static</span> constexpr Tuple (max)()</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> max_impl(boost::mp11::make_index_sequence<std::tuple_size<Tuple>::value>{});</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">template</span> <std::size_t... I></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">static</span> constexpr Tuple min_impl(boost::mp11::index_sequence<I...>)</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  {</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> std::make_tuple(</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  (std::numeric_limits<<span class="keyword">typename</span> std::tuple_element<I, Tuple>::type>::min)()...);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">template</span> <std::size_t... I></div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">static</span> constexpr Tuple max_impl(boost::mp11::index_sequence<I...>)</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  {</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> std::make_tuple(</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  (std::numeric_limits<<span class="keyword">typename</span> std::tuple_element<I, Tuple>::type>::max)()...);</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> };</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  </div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> Dimension></div>
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<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1filler.html"> 172</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1filler.html">filler</a></div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> {</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Container, <span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordtype">void</span> operator()(Container&, Tuple&, Tuple&, std::size_t)</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  {</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> };</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">template</span> <></div>
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<div class="line"><a name="l00183"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1filler_3_011_01_4.html"> 183</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1filler.html">filler</a><1></div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> {</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Container, <span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">void</span> operator()(Container& hist, Tuple& lower, Tuple& upper, std::size_t bin_width = 1)</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> i = std::get<0>(lower); <span class="keyword">static_cast<</span>std::size_t<span class="keyword">></span>(std::get<0>(upper) - i) >= bin_width; i += bin_width)</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  {</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  hist(i / bin_width) = 0;</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  hist(std::get<0>(upper) / bin_width) = 0;</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> };</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> } <span class="comment">//namespace detail</span></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  </div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... T></div>
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<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html"> 214</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1histogram.html">histogram</a> : <span class="keyword">public</span> std::unordered_map<std::tuple<T...>, double, detail::hash_tuple<T...>></div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> {</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keyword">using</span> base_t = std::unordered_map<std::tuple<T...>, double, <a class="code" href="structboost_1_1gil_1_1detail_1_1hash__tuple.html">detail::hash_tuple</a><T...>>;</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">using</span> bin_t = boost::mp11::mp_list<T...>;</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">using</span> key_t = <span class="keyword">typename</span> base_t::key_type;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">using</span> mapped_t = <span class="keyword">typename</span> base_t::mapped_type;</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">using</span> value_t = <span class="keyword">typename</span> base_t::value_type;</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <a class="code" href="classboost_1_1gil_1_1histogram.html">histogram</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  </div>
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<div class="line"><a name="l00226"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a4806809cec84980fac0a10596414e960"> 226</a></span>  <span class="keyword">static</span> constexpr std::size_t <a class="code" href="classboost_1_1gil_1_1histogram.html#a4806809cec84980fac0a10596414e960">dimension</a>()</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  {</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">return</span> std::tuple_size<key_t>::value;</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  </div>
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<div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a383075e79dfce648ead785b87a7f0463"> 232</a></span>  mapped_t& <a class="code" href="classboost_1_1gil_1_1histogram.html#a383075e79dfce648ead785b87a7f0463">operator()</a>(T... indices)</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  {</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">auto</span> key = std::make_tuple(indices...);</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  std::size_t <span class="keyword">const</span> index_dimension = std::tuple_size<std::tuple<T...>>::value;</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  std::size_t <span class="keyword">const</span> histogram_dimension = <a class="code" href="classboost_1_1gil_1_1histogram.html#a4806809cec84980fac0a10596414e960">dimension</a>();</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  static_assert(histogram_dimension == index_dimension, <span class="stringliteral">"Dimensions do not match."</span>);</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">return</span> base_t::operator[](key);</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  </div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> OtherType></div>
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<div class="line"><a name="l00245"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#af92795152d964a6032e959435c828434"> 245</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#af92795152d964a6032e959435c828434">equals</a>(OtherType <span class="keyword">const</span>& otherhist)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">bool</span> check = (<a class="code" href="classboost_1_1gil_1_1histogram.html#a4806809cec84980fac0a10596414e960">dimension</a>() == otherhist.dimension());</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  </div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">using</span> other_value_t = <span class="keyword">typename</span> OtherType::value_type;</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  std::for_each(otherhist.begin(), otherhist.end(), [&](other_value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  key_t key = key_from_tuple(v.first);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  if (base_t::find(key) != base_t::end())</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  {</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  check = check & (base_t::at(key) == otherhist.at(v.first));</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  {</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  check = false;</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  });</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> check;</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  </div>
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<div class="line"><a name="l00266"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a0dae242b2c1bf16bde24c124d3097c8a"> 266</a></span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#a0dae242b2c1bf16bde24c124d3097c8a">is_pixel_compatible</a>()</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  {</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">using</span> bin_types = boost::mp11::mp_list<T...>;</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">return</span> boost::mp11::mp_all_of<bin_types, std::is_arithmetic>::value;</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  </div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00275"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#ae4fb7132988f0d964a632b88e34347d8"> 275</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#ae4fb7132988f0d964a632b88e34347d8">is_tuple_compatible</a>(Tuple <span class="keyword">const</span>&)</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  {</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  std::size_t <span class="keyword">const</span> tuple_size = std::tuple_size<Tuple>::value;</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  std::size_t <span class="keyword">const</span> histogram_size = dimension();</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// TODO : Explore consequence of using if-constexpr</span></div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keyword">using</span> sequence_type = <span class="keyword">typename</span> std::conditional</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <</div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  tuple_size >= histogram_size,</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  boost::mp11::make_index_sequence<histogram_size>,</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  boost::mp11::make_index_sequence<tuple_size></div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  >::type;</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  </div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (is_tuple_size_compatible<Tuple>())</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">return</span> is_tuple_type_compatible<Tuple>(sequence_type{});</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  </div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keyword">template</span> <std::size_t... Dimensions, <span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a1326d1132f56f08297dce325b4b4ff7a"> 296</a></span>  key_t <a class="code" href="classboost_1_1gil_1_1histogram.html#a1326d1132f56f08297dce325b4b4ff7a">key_from_tuple</a>(Tuple <span class="keyword">const</span>& t)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keyword">using</span> index_list = boost::mp11::mp_list_c<std::size_t, Dimensions...>;</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  std::size_t <span class="keyword">const</span> index_list_size = boost::mp11::mp_size<index_list>::value;</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  std::size_t <span class="keyword">const</span> tuple_size = std::tuple_size<Tuple>::value;</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  std::size_t <span class="keyword">const</span> histogram_dimension = dimension();</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  </div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  static_assert(</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  ((index_list_size != 0 && index_list_size == histogram_dimension) ||</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  (tuple_size == histogram_dimension)),</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="stringliteral">"Tuple and histogram key of different sizes"</span>);</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  </div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">using</span> new_index_list = <span class="keyword">typename</span> std::conditional</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  index_list_size == 0,</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  boost::mp11::mp_list_c<std::size_t, 0>,</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  index_list</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  >::type;</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  </div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  std::size_t <span class="keyword">const</span> min =</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  boost::mp11::mp_min_element<new_index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  </div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  std::size_t <span class="keyword">const</span> max =</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  boost::mp11::mp_max_element<new_index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  </div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  static_assert((0 <= min && max < tuple_size) || index_list_size == 0, <span class="stringliteral">"Index out of Range"</span>);</div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  </div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">using</span> seq1 = boost::mp11::make_index_sequence<histogram_dimension>;</div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">using</span> seq2 = boost::mp11::index_sequence<Dimensions...>;</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// TODO : Explore consequence of using if-constexpr</span></div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">using</span> sequence_type = <span class="keyword">typename</span> std::conditional<index_list_size == 0, seq1, seq2>::type;</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  </div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keyword">auto</span> key = <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">detail::tuple_to_tuple</a>(t, sequence_type{});</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  static_assert(</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  is_tuple_type_compatible<Tuple>(seq1{}),</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="stringliteral">"Tuple type and histogram type not compatible."</span>);</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  </div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span> make_histogram_key(key, seq1{});</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  </div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">template</span> <std::size_t... Dimensions, <span class="keyword">typename</span> Pixel></div>
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<div class="line"><a name="l00339"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a72e5f7159495f2b7a131acc41d686c23"> 339</a></span>  key_t <a class="code" href="classboost_1_1gil_1_1histogram.html#a72e5f7159495f2b7a131acc41d686c23">key_from_pixel</a>(Pixel <span class="keyword">const</span>& p)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keyword">using</span> index_list = boost::mp11::mp_list_c<std::size_t, Dimensions...>;</div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  std::size_t <span class="keyword">const</span> index_list_size = boost::mp11::mp_size<index_list>::value;</div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  std::size_t <span class="keyword">const</span> pixel_dimension = <a class="code" href="structboost_1_1gil_1_1num__channels.html">num_channels<Pixel>::value</a>;</div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  std::size_t <span class="keyword">const</span> histogram_dimension = dimension();</div>
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  </div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  static_assert(</div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  ((index_list_size != 0 && index_list_size == histogram_dimension) ||</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  (index_list_size == 0 && pixel_dimension == histogram_dimension)) &&</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  is_pixel_compatible(),</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="stringliteral">"Pixels and histogram key are not compatible."</span>);</div>
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  </div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keyword">using</span> new_index_list = <span class="keyword">typename</span> std::conditional</div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  index_list_size == 0,</div>
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  boost::mp11::mp_list_c<std::size_t, 0>,</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  index_list</div>
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  >::type;</div>
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  </div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  std::size_t <span class="keyword">const</span> min =</div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  boost::mp11::mp_min_element<new_index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  </div>
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<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  std::size_t <span class="keyword">const</span> max =</div>
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<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  boost::mp11::mp_max_element<new_index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  </div>
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<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  static_assert(</div>
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<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  (0 <= min && max < pixel_dimension) || index_list_size == 0, <span class="stringliteral">"Index out of Range"</span>);</div>
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<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  </div>
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<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">using</span> seq1 = boost::mp11::make_index_sequence<histogram_dimension>;</div>
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<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keyword">using</span> seq2 = boost::mp11::index_sequence<Dimensions...>;</div>
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<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keyword">using</span> sequence_type = <span class="keyword">typename</span> std::conditional<index_list_size == 0, seq1, seq2>::type;</div>
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<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  </div>
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<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">auto</span> key = <a class="code" href="group___histogram-_helpers.html#ga9834216fad8903ba7e79413cf3fc7539">detail::pixel_to_tuple</a>(p, sequence_type{});</div>
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<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">return</span> make_histogram_key(key, seq1{});</div>
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<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div>
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<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  </div>
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<div class="line"><a name="l00377"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#ac5b0f6998ccb8ac1e5fb735acf8735b0"> 377</a></span>  key_t <a class="code" href="classboost_1_1gil_1_1histogram.html#ac5b0f6998ccb8ac1e5fb735acf8735b0">nearest_key</a>(key_t <span class="keyword">const</span>& k)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keyword">using</span> check_list = boost::mp11::mp_list<boost::has_less<T>...>;</div>
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<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  static_assert(</div>
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<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  boost::mp11::mp_all_of<check_list, boost::mp11::mp_to_bool>::value,</div>
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<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="stringliteral">"Keys are not comparable."</span>);</div>
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<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">auto</span> nearest_k = k;</div>
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<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">if</span> (base_t::find(k) != base_t::end())</div>
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<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  {</div>
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<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> nearest_k;</div>
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<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div>
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<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  {</div>
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<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">bool</span> once = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">if</span> (v.first <= k)</div>
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<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  {</div>
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<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  if (once)</div>
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<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  {</div>
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<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  once = !once;</div>
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<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  nearest_k = v.first;</div>
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<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  }</div>
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<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">else</span> if (nearest_k < v.first)</div>
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<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  nearest_k = v.first;</div>
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<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  }</div>
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<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  });</div>
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<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordflow">return</span> nearest_k;</div>
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<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div>
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<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  }</div>
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<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  </div>
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<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keyword">template</span> <std::size_t... Dimensions, <span class="keyword">typename</span> SrcView></div>
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<div class="line"><a name="l00409"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#ad383819035232b2c4a664b0a9c025989"> 409</a></span>  <span class="keywordtype">void</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#ad383819035232b2c4a664b0a9c025989">fill</a>(</div>
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<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  SrcView <span class="keyword">const</span>& srcview,</div>
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<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  std::size_t bin_width = 1,</div>
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<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordtype">bool</span> applymask = <span class="keyword">false</span>,</div>
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<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  std::vector<std::vector<bool>> mask = {},</div>
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<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  key_t lower = key_t(),</div>
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<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  key_t upper = key_t(),</div>
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<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordtype">bool</span> setlimits = <span class="keyword">false</span>)</div>
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<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  {</div>
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<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  gil_function_requires<ImageViewConcept<SrcView>>();</div>
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<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1channel__type.html">channel_type<SrcView>::type</a>;</div>
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<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  </div>
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<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">for</span> (std::ptrdiff_t src_y = 0; src_y < srcview.height(); ++src_y)</div>
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<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  {</div>
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<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keyword">auto</span> src_it = srcview.row_begin(src_y);</div>
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<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">for</span> (std::ptrdiff_t src_x = 0; src_x < srcview.width(); ++src_x)</div>
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<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  {</div>
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<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (applymask && !mask[src_y][src_x])</div>
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<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keyword">auto</span> scaled_px = src_it[src_x];</div>
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<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  static_for_each(scaled_px, [&](channel_t& ch) {</div>
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<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  ch = ch / bin_width;</div>
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<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  });</div>
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<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keyword">auto</span> key = key_from_pixel<Dimensions...>(scaled_px);</div>
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<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">if</span> (!setlimits ||</div>
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<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  (<a class="code" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">detail::tuple_compare</a>(lower, key) && <a class="code" href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">detail::tuple_compare</a>(key, upper)))</div>
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<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  base_t::operator[](key)++;</div>
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<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  }</div>
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<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  }</div>
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<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  }</div>
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<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  </div>
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<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">template</span> <std::size_t... Dimensions, <span class="keyword">typename</span> Tuple></div>
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<div class="line"><a name="l00442"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a51a9548281df868dbe64edf2616d025d"> 442</a></span>  <a class="code" href="classboost_1_1gil_1_1histogram.html">histogram</a> <a class="code" href="classboost_1_1gil_1_1histogram.html#a51a9548281df868dbe64edf2616d025d">sub_histogram</a>(Tuple <span class="keyword">const</span>& t1, Tuple <span class="keyword">const</span>& t2)</div>
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<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  {</div>
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<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keyword">using</span> index_list = boost::mp11::mp_list_c<std::size_t, Dimensions...>;</div>
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<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  std::size_t <span class="keyword">const</span> index_list_size = boost::mp11::mp_size<index_list>::value;</div>
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<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  std::size_t <span class="keyword">const</span> histogram_dimension = dimension();</div>
|
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<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  </div>
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<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  std::size_t <span class="keyword">const</span> min =</div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  boost::mp11::mp_min_element<index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  </div>
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<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  std::size_t <span class="keyword">const</span> max =</div>
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<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  boost::mp11::mp_max_element<index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  </div>
|
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<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  static_assert(</div>
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<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  (0 <= min && max < histogram_dimension) && index_list_size < histogram_dimension,</div>
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<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="stringliteral">"Index out of Range"</span>);</div>
|
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<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  </div>
|
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<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keyword">using</span> seq1 = boost::mp11::make_index_sequence<dimension()>;</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keyword">using</span> seq2 = boost::mp11::index_sequence<Dimensions...>;</div>
|
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<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  </div>
|
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<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  static_assert(</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  is_tuple_type_compatible<Tuple>(seq1{}),</div>
|
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<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="stringliteral">"Tuple type and histogram type not compatible."</span>);</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  </div>
|
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<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keyword">auto</span> low = make_histogram_key(t1, seq1{});</div>
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<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">auto</span> low_key = <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">detail::tuple_to_tuple</a>(low, seq2{});</div>
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<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keyword">auto</span> high = make_histogram_key(t2, seq1{});</div>
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<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keyword">auto</span> high_key = <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">detail::tuple_to_tuple</a>(high, seq2{});</div>
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<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  </div>
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<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <a class="code" href="classboost_1_1gil_1_1histogram.html">histogram</a> sub_h;</div>
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<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& k) {</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keyword">auto</span> tmp_key = <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">detail::tuple_to_tuple</a>(k.first, seq2{});</div>
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<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">if</span> (low_key <= tmp_key && tmp_key <= high_key)</div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  sub_h[k.first] += base_t::operator[](k.first);</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  });</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">return</span> sub_h;</div>
|
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  }</div>
|
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  </div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">template</span> <std::size_t... Dimensions></div>
|
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<div class="line"><a name="l00481"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a1e7dfad30cdf935978cea64a236fb6e0"> 481</a></span>  <a class="code" href="classboost_1_1gil_1_1histogram.html">histogram<boost::mp11::mp_at<bin_t, boost::mp11::mp_size_t<Dimensions></a>>...> <a class="code" href="classboost_1_1gil_1_1histogram.html#a1e7dfad30cdf935978cea64a236fb6e0">sub_histogram</a>()</div>
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<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  {</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keyword">using</span> index_list = boost::mp11::mp_list_c<std::size_t, Dimensions...>;</div>
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<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  std::size_t <span class="keyword">const</span> index_list_size = boost::mp11::mp_size<index_list>::value;</div>
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<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  std::size_t <span class="keyword">const</span> histogram_dimension = dimension();</div>
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<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  </div>
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<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  std::size_t <span class="keyword">const</span> min =</div>
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<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  boost::mp11::mp_min_element<index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  </div>
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<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  std::size_t <span class="keyword">const</span> max =</div>
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<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  boost::mp11::mp_max_element<index_list, boost::mp11::mp_less>::value;</div>
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<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  </div>
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<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  static_assert(</div>
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<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  (0 <= min && max < histogram_dimension) && index_list_size < histogram_dimension,</div>
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<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="stringliteral">"Index out of Range"</span>);</div>
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<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  </div>
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<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <a class="code" href="classboost_1_1gil_1_1histogram.html">histogram<boost::mp11::mp_at<bin_t, boost::mp11::mp_size_t<Dimensions></a>>...> sub_h;</div>
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<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  </div>
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<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keyword">auto</span> sub_key =</div>
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<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <a class="code" href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">detail::tuple_to_tuple</a>(v.first, boost::mp11::index_sequence<Dimensions...>{});</div>
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<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  sub_h[sub_key] += base_t::operator[](v.first);</div>
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<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  });</div>
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<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">return</span> sub_h;</div>
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<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  }</div>
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<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  </div>
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<div class="line"><a name="l00508"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#acd0de676568888d848beb97dcc53ae47"> 508</a></span>  <span class="keywordtype">void</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#acd0de676568888d848beb97dcc53ae47">normalize</a>()</div>
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<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  {</div>
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<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordtype">double</span> sum = 0.0;</div>
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<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  sum += v.second;</div>
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<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  });</div>
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<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="comment">// std::cout<<(long int)sum<<"asfe";</span></div>
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<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  base_t::operator[](v.first) = v.second / sum;</div>
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<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  });</div>
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<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div>
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<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  </div>
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<div class="line"><a name="l00521"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#af31d07521e522dfbd377eebf1652053f"> 521</a></span>  <span class="keywordtype">double</span> <a class="code" href="classboost_1_1gil_1_1histogram.html#af31d07521e522dfbd377eebf1652053f">sum</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordtype">double</span> sum = 0.0;</div>
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<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  sum += v.second;</div>
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<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  });</div>
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<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">return</span> sum;</div>
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<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  }</div>
|
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<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  </div>
|
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<div class="line"><a name="l00531"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#a69855316534ac65806a71253ac424688"> 531</a></span>  key_t <a class="code" href="classboost_1_1gil_1_1histogram.html#a69855316534ac65806a71253ac424688">min_key</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  key_t min_key = base_t::begin()->first;</div>
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<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keywordflow">if</span> (v.first < min_key)</div>
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<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  min_key = v.first;</div>
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<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  });</div>
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<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">return</span> min_key;</div>
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<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  }</div>
|
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<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  </div>
|
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<div class="line"><a name="l00542"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#af6c108814c2d6da6d55b18dbb4d51f4e"> 542</a></span>  key_t <a class="code" href="classboost_1_1gil_1_1histogram.html#af6c108814c2d6da6d55b18dbb4d51f4e">max_key</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="keyword"> </span>{</div>
|
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<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  key_t max_key = base_t::begin()->first;</div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">if</span> (v.first > max_key)</div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  max_key = v.first;</div>
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|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  });</div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">return</span> max_key;</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div>
|
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<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  </div>
|
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<div class="line"><a name="l00553"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1histogram.html#ab0607d4ba35a4d535c4bf1ff5e32db8b"> 553</a></span>  std::vector<key_t> <a class="code" href="classboost_1_1gil_1_1histogram.html#ab0607d4ba35a4d535c4bf1ff5e32db8b">sorted_keys</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="keyword"> </span>{</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  std::vector<key_t> sorted_keys;</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  std::for_each(base_t::begin(), base_t::end(), [&](value_t <span class="keyword">const</span>& v) {</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  sorted_keys.push_back(v.first);</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  });</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  std::sort(sorted_keys.begin(), sorted_keys.end());</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keywordflow">return</span> sorted_keys;</div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  }</div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  </div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple, std::size_t... I></div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  key_t make_histogram_key(Tuple <span class="keyword">const</span>& t, boost::mp11::index_sequence<I...>)<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="keyword"> </span>{</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">return</span> std::make_tuple(</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keyword">static_cast<</span>typename boost::mp11::mp_at<bin_t, boost::mp11::mp_size_t<I><span class="keyword">></span>>(</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  std::get<I>(t))...);</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  }</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  </div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple, std::size_t... I></div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_tuple_type_compatible(boost::mp11::index_sequence<I...>)</div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  {</div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keyword">using</span> tp = boost::mp11::mp_list</div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <</div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keyword">typename</span> std::is_convertible</div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  boost::mp11::mp_at<bin_t, boost::mp11::mp_size_t<I>>,</div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keyword">typename</span> std::tuple_element<I, Tuple>::type</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  >::type...</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  >;</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keywordflow">return</span> boost::mp11::mp_all_of<tp, boost::mp11::mp_to_bool>::value;</div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  }</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  </div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Tuple></div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_tuple_size_compatible()</div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  {</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keywordflow">return</span> (std::tuple_size<Tuple>::value == dimension());</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  }</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> };</div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  </div>
|
|
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcView, <span class="keyword">typename</span> Container></div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="keywordtype">void</span> fill_histogram(SrcView <span class="keyword">const</span>&, Container&);</div>
|
|
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  </div>
|
|
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="keyword">template</span> <std::size_t... Dimensions, <span class="keyword">typename</span> SrcView, <span class="keyword">typename</span>... T></div>
|
|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="keywordtype">void</span> fill_histogram(</div>
|
|
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  SrcView <span class="keyword">const</span>& srcview,</div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  histogram<T...>& hist,</div>
|
|
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  std::size_t bin_width = 1,</div>
|
|
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="keywordtype">bool</span> accumulate = <span class="keyword">false</span>,</div>
|
|
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordtype">bool</span> sparsefill = <span class="keyword">true</span>,</div>
|
|
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="keywordtype">bool</span> applymask = <span class="keyword">false</span>,</div>
|
|
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  std::vector<std::vector<bool>> mask = {},</div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keyword">typename</span> histogram<T...>::key_type lower =</div>
|
|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  (detail::tuple_limit<<span class="keyword">typename</span> histogram<T...>::key_type>::min)(),</div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keyword">typename</span> histogram<T...>::key_type upper =</div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  (detail::tuple_limit<<span class="keyword">typename</span> histogram<T...>::key_type>::max)(),</div>
|
|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="keywordtype">bool</span> setlimits = <span class="keyword">false</span>)</div>
|
|
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> {</div>
|
|
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordflow">if</span> (!accumulate)</div>
|
|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  hist.clear();</div>
|
|
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  </div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  detail::filler<histogram<T...>::dimension()> f;</div>
|
|
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordflow">if</span> (!sparsefill)</div>
|
|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  f(hist, lower, upper, bin_width);</div>
|
|
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  </div>
|
|
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  hist.template <a class="code" href="group___s_t_l_optimizations.html#gaab999be608ae006f1127b8bb5145a227">fill</a><Dimensions...>(srcview, bin_width, applymask, mask, lower, upper, setlimits);</div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span> }</div>
|
|
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  </div>
|
|
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Container></div>
|
|
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="keyword">auto</span> cumulative_histogram(Container <span class="keyword">const</span>&) -> Container;</div>
|
|
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  </div>
|
|
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... T></div>
|
|
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="keyword">auto</span> cumulative_histogram(histogram<T...> <span class="keyword">const</span>& hist) -> histogram<T...></div>
|
|
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span> {</div>
|
|
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="keyword">using</span> check_list = boost::mp11::mp_list<boost::has_less<T>...>;</div>
|
|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  static_assert(</div>
|
|
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  boost::mp11::mp_all_of<check_list, boost::mp11::mp_to_bool>::value,</div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="stringliteral">"Cumulative histogram not possible of this type"</span>);</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  </div>
|
|
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keyword">using</span> histogram_t = histogram<T...>;</div>
|
|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keyword">using</span> pair_t = std::pair<typename histogram_t::key_type, typename histogram_t::mapped_type>;</div>
|
|
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="keyword">using</span> value_t = <span class="keyword">typename</span> histogram_t::value_type;</div>
|
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<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  </div>
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<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  histogram_t cumulative_hist;</div>
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<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  std::size_t <span class="keyword">const</span> dims = histogram_t::dimension();</div>
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<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keywordflow">if</span> (dims == 1)</div>
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<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  {</div>
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<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  std::vector<pair_t> sorted_keys(hist.size());</div>
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<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  std::size_t counter = 0;</div>
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<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  std::for_each(hist.begin(), hist.end(), [&](value_t <span class="keyword">const</span>& v) {</div>
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<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  sorted_keys[counter++] = std::make_pair(v.first, v.second);</div>
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<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  });</div>
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<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  std::sort(sorted_keys.begin(), sorted_keys.end());</div>
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<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keyword">auto</span> cumulative_counter = <span class="keyword">static_cast<</span>typename histogram_t::mapped_type<span class="keyword">></span>(0);</div>
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<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">for</span> (std::size_t i = 0; i < sorted_keys.size(); ++i)</div>
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<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  {</div>
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<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  cumulative_counter += sorted_keys[i].second;</div>
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<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  cumulative_hist[(sorted_keys[i].first)] = cumulative_counter;</div>
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<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  }</div>
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<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  }</div>
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<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  {</div>
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<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  std::for_each(hist.begin(), hist.end(), [&](value_t <span class="keyword">const</span>& v1) {</div>
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<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  auto cumulative_counter = static_cast<typename histogram_t::mapped_type>(0);</div>
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<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  std::for_each(hist.begin(), hist.end(), [&](value_t const& v2) {</div>
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<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  bool comp = detail::tuple_compare(</div>
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<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  v2.first, v1.first,</div>
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<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  boost::mp11::make_index_sequence<histogram_t::dimension()>{});</div>
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<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  if (comp)</div>
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<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  cumulative_counter += hist.at(v2.first);</div>
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<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  });</div>
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<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  cumulative_hist[v1.first] = cumulative_counter;</div>
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<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  });</div>
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<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  }</div>
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<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  <span class="keywordflow">return</span> cumulative_hist;</div>
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<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> }</div>
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<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  </div>
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<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> }} <span class="comment">//namespace boost::gil</span></div>
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<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  </div>
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<div class="line"><a name="l00719"></a><span class="lineno"> 719</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html">boost::gil::histogram</a></div><div class="ttdoc">Default histogram class provided by boost::gil.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:215</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a0dae242b2c1bf16bde24c124d3097c8a"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a0dae242b2c1bf16bde24c124d3097c8a">boost::gil::histogram::is_pixel_compatible</a></div><div class="ttdeci">static constexpr bool is_pixel_compatible()</div><div class="ttdoc">Checks if the histogram class is compatible to be used with a GIL image type.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:266</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a1326d1132f56f08297dce325b4b4ff7a"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a1326d1132f56f08297dce325b4b4ff7a">boost::gil::histogram::key_from_tuple</a></div><div class="ttdeci">key_t key_from_tuple(Tuple const &t) const</div><div class="ttdoc">Returns a key compatible to be used as the histogram key from the input tuple.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:296</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a1e7dfad30cdf935978cea64a236fb6e0"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a1e7dfad30cdf935978cea64a236fb6e0">boost::gil::histogram::sub_histogram</a></div><div class="ttdeci">histogram< boost::mp11::mp_at< bin_t, boost::mp11::mp_size_t< Dimensions > >... > sub_histogram()</div><div class="ttdoc">Returns a sub-histogram over specified axes.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:481</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a383075e79dfce648ead785b87a7f0463"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a383075e79dfce648ead785b87a7f0463">boost::gil::histogram::operator()</a></div><div class="ttdeci">mapped_t & operator()(T... indices)</div><div class="ttdoc">Returns bin value corresponding to specified tuple.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:232</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a4806809cec84980fac0a10596414e960"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a4806809cec84980fac0a10596414e960">boost::gil::histogram::dimension</a></div><div class="ttdeci">static constexpr std::size_t dimension()</div><div class="ttdoc">Returns the number of dimensions(axes) the class supports.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:226</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a51a9548281df868dbe64edf2616d025d"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a51a9548281df868dbe64edf2616d025d">boost::gil::histogram::sub_histogram</a></div><div class="ttdeci">histogram sub_histogram(Tuple const &t1, Tuple const &t2)</div><div class="ttdoc">Can return a subset or a mask over the current histogram.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:442</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a69855316534ac65806a71253ac424688"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a69855316534ac65806a71253ac424688">boost::gil::histogram::min_key</a></div><div class="ttdeci">key_t min_key() const</div><div class="ttdoc">Return the minimum key in histogram.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:531</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_a72e5f7159495f2b7a131acc41d686c23"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#a72e5f7159495f2b7a131acc41d686c23">boost::gil::histogram::key_from_pixel</a></div><div class="ttdeci">key_t key_from_pixel(Pixel const &p) const</div><div class="ttdoc">Returns a histogram compatible key from the input pixel which can be directly used.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:339</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_ab0607d4ba35a4d535c4bf1ff5e32db8b"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#ab0607d4ba35a4d535c4bf1ff5e32db8b">boost::gil::histogram::sorted_keys</a></div><div class="ttdeci">std::vector< key_t > sorted_keys() const</div><div class="ttdoc">Return sorted keys in a vector.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:553</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_ac5b0f6998ccb8ac1e5fb735acf8735b0"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#ac5b0f6998ccb8ac1e5fb735acf8735b0">boost::gil::histogram::nearest_key</a></div><div class="ttdeci">key_t nearest_key(key_t const &k) const</div><div class="ttdoc">Return nearest smaller key to specified histogram key.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:377</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_acd0de676568888d848beb97dcc53ae47"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#acd0de676568888d848beb97dcc53ae47">boost::gil::histogram::normalize</a></div><div class="ttdeci">void normalize()</div><div class="ttdoc">Normalize this histogram class.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:508</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_ad383819035232b2c4a664b0a9c025989"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#ad383819035232b2c4a664b0a9c025989">boost::gil::histogram::fill</a></div><div class="ttdeci">void fill(SrcView const &srcview, std::size_t bin_width=1, bool applymask=false, std::vector< std::vector< bool >> mask={}, key_t lower=key_t(), key_t upper=key_t(), bool setlimits=false)</div><div class="ttdoc">Fills the histogram with the input image view.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:409</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_ae4fb7132988f0d964a632b88e34347d8"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#ae4fb7132988f0d964a632b88e34347d8">boost::gil::histogram::is_tuple_compatible</a></div><div class="ttdeci">bool is_tuple_compatible(Tuple const &)</div><div class="ttdoc">Checks if the histogram class is compatible to be used with the specified tuple type.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:275</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_af31d07521e522dfbd377eebf1652053f"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#af31d07521e522dfbd377eebf1652053f">boost::gil::histogram::sum</a></div><div class="ttdeci">double sum() const</div><div class="ttdoc">Return the sum count of all bins.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:521</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_af6c108814c2d6da6d55b18dbb4d51f4e"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#af6c108814c2d6da6d55b18dbb4d51f4e">boost::gil::histogram::max_key</a></div><div class="ttdeci">key_t max_key() const</div><div class="ttdoc">Return the maximum key in histogram.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:542</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1histogram_html_af92795152d964a6032e959435c828434"><div class="ttname"><a href="classboost_1_1gil_1_1histogram.html#af92795152d964a6032e959435c828434">boost::gil::histogram::equals</a></div><div class="ttdeci">bool equals(OtherType const &otherhist) const</div><div class="ttdoc">Checks if 2 histograms are equal. Ignores type, and checks if the keys (after type casting) match.</div><div class="ttdef"><b>Definition:</b> histogram.hpp:245</div></div>
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<div class="ttc" id="agroup___histogram-_helpers_html_ga4d189badd7c3aee79694489ce7f2fdaa"><div class="ttname"><a href="group___histogram-_helpers.html#ga4d189badd7c3aee79694489ce7f2fdaa">boost::gil::detail::tuple_to_tuple</a></div><div class="ttdeci">auto tuple_to_tuple(Tuple const &t, boost::mp11::index_sequence< I... >) -> decltype(std::make_tuple(std::get< I >(t)...))</div><div class="ttdef"><b>Definition:</b> histogram.hpp:98</div></div>
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<div class="ttc" id="agroup___histogram-_helpers_html_ga9834216fad8903ba7e79413cf3fc7539"><div class="ttname"><a href="group___histogram-_helpers.html#ga9834216fad8903ba7e79413cf3fc7539">boost::gil::detail::pixel_to_tuple</a></div><div class="ttdeci">auto pixel_to_tuple(Pixel const &p, boost::mp11::index_sequence< I... >) -> decltype(std::make_tuple(p[I]...))</div><div class="ttdef"><b>Definition:</b> histogram.hpp:88</div></div>
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<div class="ttc" id="agroup___histogram-_helpers_html_gaf383ec0528e99613ff033eb98f99bd93"><div class="ttname"><a href="group___histogram-_helpers.html#gaf383ec0528e99613ff033eb98f99bd93">boost::gil::detail::tuple_compare</a></div><div class="ttdeci">bool tuple_compare(Tuple const &t1, Tuple const &t2)</div><div class="ttdoc">Compares 2 tuples and outputs t1 <= t2 Comparison is not in a lexicographic manner but on every eleme...</div><div class="ttdef"><b>Definition:</b> histogram.hpp:125</div></div>
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<div class="ttc" id="agroup___s_t_l_optimizations_html_gaab999be608ae006f1127b8bb5145a227"><div class="ttname"><a href="group___s_t_l_optimizations.html#gaab999be608ae006f1127b8bb5145a227">std::fill</a></div><div class="ttdeci">void fill(boost::gil::iterator_from_2d< IL > first, boost::gil::iterator_from_2d< IL > last, const V &val)</div><div class="ttdoc">std::fill(I,I,V) with I being a iterator_from_2d</div><div class="ttdef"><b>Definition:</b> algorithm.hpp:369</div></div>
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<div class="ttc" id="anamespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdoc">defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)</div><div class="ttdef"><b>Definition:</b> algorithm.hpp:36</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1channel__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1channel__type.html">boost::gil::channel_type</a></div><div class="ttdef"><b>Definition:</b> color_convert.hpp:31</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1detail_1_1filler_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1filler.html">boost::gil::detail::filler</a></div><div class="ttdoc">Filler is used to fill the histogram class with all values between a specified range This functor is ...</div><div class="ttdef"><b>Definition:</b> histogram.hpp:173</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1detail_1_1hash__tuple_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1hash__tuple.html">boost::gil::detail::hash_tuple</a></div><div class="ttdoc">Functor provided for the hashing of tuples. The following approach makes use hash_combine from boost:...</div><div class="ttdef"><b>Definition:</b> histogram.hpp:75</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1detail_1_1tuple__limit_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1tuple__limit.html">boost::gil::detail::tuple_limit</a></div><div class="ttdoc">Provides equivalent of std::numeric_limits for type std::tuple tuple_limit gets called with only tupl...</div><div class="ttdef"><b>Definition:</b> histogram.hpp:138</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1num__channels_html"><div class="ttname"><a href="structboost_1_1gil_1_1num__channels.html">boost::gil::num_channels</a></div><div class="ttdoc">Returns the number of channels of a pixel-based GIL construct.</div><div class="ttdef"><b>Definition:</b> pixel.hpp:54</div></div>
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