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<div class="title">kernel.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 2005-2007 Adobe Systems Incorporated</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright 2019 Miral Shah <miralshah2211@gmail.com></span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Copyright 2022 Pranam Lashkari <plashkari628@gmail.com></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</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="l00008"></a><span class="lineno"> 8</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#ifndef BOOST_GIL_IMAGE_PROCESSING_KERNEL_HPP</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#define BOOST_GIL_IMAGE_PROCESSING_KERNEL_HPP</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/gil/utilities.hpp></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <boost/gil/point.hpp></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <boost/assert.hpp></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <algorithm></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 <cstddef></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <stdexcept></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</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="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="comment">// Definitions of 1D fixed-size and variable-size kernels and related operations</span></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="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>detail {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Core></div>
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<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a> : <span class="keyword">public</span> Core</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a>() = <span class="keywordflow">default</span>;</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="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">explicit</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a>(std::size_t center)</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  : center_(center)</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="l00045"></a><span class="lineno"> 45</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>());</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a>(std::size_t <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, std::size_t center)</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  : Core(<a class="code" href="structboost_1_1gil_1_1size.html">size</a>) , center_(center)</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>  BOOST_ASSERT(this->size() > 0);</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>()); <span class="comment">// also implies `size() > 0`</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="l00054"></a><span class="lineno"> 54</span>  </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a>(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a> <span class="keyword">const</span>& other)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  : Core(other), center_(other.center_)</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  BOOST_ASSERT(this->size() > 0);</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>()); <span class="comment">// also implies `size() > 0`</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a>& operator=(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">kernel_1d_adaptor</a> <span class="keyword">const</span>& other)</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="l00064"></a><span class="lineno"> 64</span>  Core::operator=(other);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  center_ = other.center_;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  std::size_t left_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>());</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> center_;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  std::size_t right_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>());</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> this->size() - center_ - 1;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">auto</span> center() -> std::size_t&</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>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>());</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> center_;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">auto</span> center() <span class="keyword">const</span> -> std::size_t <span class="keyword">const</span>&</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  BOOST_ASSERT(center_ < this-><a class="code" href="structboost_1_1gil_1_1size.html">size</a>());</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> center_;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</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> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  std::size_t center_{0};</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> };</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> } <span class="comment">// namespace detail</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> Allocator = std::allocator<T> ></div>
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<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1kernel__1d.html"> 101</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a> : <span class="keyword">public</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">detail::kernel_1d_adaptor</a><std::vector<T, Allocator>></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>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a> = <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">detail::kernel_1d_adaptor<std::vector<T, Allocator></a>>;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  </div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a>(std::size_t <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, std::size_t center) : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(<a class="code" href="structboost_1_1gil_1_1size.html">size</a>, center) {}</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>  <span class="keyword">template</span> <<span class="keyword">typename</span> FwdIterator></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a>(FwdIterator elements, std::size_t <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, std::size_t center)</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(<a class="code" href="structboost_1_1gil_1_1size.html">size</a>, center)</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  detail::copy_n(elements, <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, this->begin());</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</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>  <a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a>(<a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a> <span class="keyword">const</span>& other) : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(other) {}</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a>& operator=(<a class="code" href="classboost_1_1gil_1_1kernel__1d.html">kernel_1d</a> <span class="keyword">const</span>& other) = <span class="keywordflow">default</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="l00119"></a><span class="lineno"> 119</span>  </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T,std::<span class="keywordtype">size_t</span> Size></div>
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<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1kernel__1d__fixed.html"> 122</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a> : <span class="keyword">public</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">detail::kernel_1d_adaptor</a><std::array<T, Size>></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a> = <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">detail::kernel_1d_adaptor<std::array<T, Size></a>>;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">static</span> constexpr std::size_t static_size = Size;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  static_assert(static_size > 0, <span class="stringliteral">"kernel must have size greater than 0"</span>);</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  static_assert(static_size % 2 == 1, <span class="stringliteral">"kernel size must be odd to ensure validity at the center"</span>);</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  </div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">explicit</span> <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a>(std::size_t center) : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(center) {}</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> FwdIterator></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">explicit</span> <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a>(FwdIterator elements, std::size_t center)</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(center)</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  {</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  detail::copy_n(elements, Size, this->begin());</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>  </div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a>(<a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a> <span class="keyword">const</span>& other) : <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">parent_t</a>(other) {}</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a>& operator=(<a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed</a> <span class="keyword">const</span>& other) = <span class="keywordflow">default</span>;</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>  </div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment">// TODO: This data member is odr-used and definition at namespace scope</span></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment">// is required by C++11. Redundant and deprecated in C++17.</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T,std::<span class="keywordtype">size_t</span> Size></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> constexpr std::size_t <a class="code" href="classboost_1_1gil_1_1kernel__1d__fixed.html">kernel_1d_fixed<T, Size>::static_size</a>;</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  </div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Kernel></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">inline</span> Kernel reverse_kernel(Kernel <span class="keyword">const</span>& kernel)</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  Kernel result(kernel);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  result.center() = kernel.right_size();</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  std::reverse(result.begin(), result.end());</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> }</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>  </div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">namespace </span>detail {</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> <span class="keyword">template</span> <<span class="keyword">typename</span> Core></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="keyword">class </span>kernel_2d_adaptor : <span class="keyword">public</span> Core</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  kernel_2d_adaptor() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">explicit</span> kernel_2d_adaptor(std::size_t center_y, std::size_t center_x)</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  : center_(center_x, center_y)</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  {</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  BOOST_ASSERT(center_.y < this->size() && center_.x < this->size());</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</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>  kernel_2d_adaptor(std::size_t size, std::size_t center_y, std::size_t center_x)</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  : Core(size * size), square_size(size), center_(center_x, center_y)</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>  BOOST_ASSERT(this->size() > 0);</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  BOOST_ASSERT(center_.y < this->size() && center_.x < this->size()); <span class="comment">// implies `size() > 0`</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="l00180"></a><span class="lineno"> 180</span>  </div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  kernel_2d_adaptor(kernel_2d_adaptor <span class="keyword">const</span>& other)</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  : Core(other), square_size(other.square_size), center_(other.center_.x, other.center_.y)</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  {</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  BOOST_ASSERT(this->size() > 0);</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  BOOST_ASSERT(center_.y < this->size() && center_.x < this->size()); <span class="comment">// implies `size() > 0`</span></div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</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>  kernel_2d_adaptor& operator=(kernel_2d_adaptor <span class="keyword">const</span>& other)</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>  Core::operator=(other);</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  center_.y = other.center_.y;</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  center_.x = other.center_.x;</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  square_size = other.square_size;</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> *<span class="keyword">this</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>  </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  std::size_t upper_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  BOOST_ASSERT(center_.y < this->size());</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> center_.y;</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  </div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  std::size_t lower_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  BOOST_ASSERT(center_.y < this->size());</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> this->size() - center_.y - 1;</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  std::size_t left_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  BOOST_ASSERT(center_.x < this->size());</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> center_.x;</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  </div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  std::size_t right_size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  BOOST_ASSERT(center_.x < this->size());</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span> this->size() - center_.x - 1;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  </div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">auto</span> center_y() -> std::size_t&</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  {</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  BOOST_ASSERT(center_.y < this->size());</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">return</span> center_.y;</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  </div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">auto</span> center_y() const -> std::<span class="keywordtype">size_t</span> const&</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  {</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  BOOST_ASSERT(center_.y < this->size());</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> center_.y;</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  </div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">auto</span> center_x() -> std::size_t&</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  {</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  BOOST_ASSERT(center_.x < this->size());</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> center_.x;</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</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="keyword">auto</span> center_x() const -> std::<span class="keywordtype">size_t</span> const&</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>  BOOST_ASSERT(center_.x < this->size());</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">return</span> center_.x;</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  </div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  std::size_t size()<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="keywordflow">return</span> square_size;</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>  </div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keyword">typename</span> Core::value_type at(std::size_t x, std::size_t y)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">if</span> (x >= this->size() || y >= this->size())</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>  <span class="keywordflow">throw</span> std::out_of_range(<span class="stringliteral">"Index out of range"</span>);</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">return</span> this->begin()[y * this->size() + x];</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>  </div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  std::size_t square_size{0};</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  </div>
|
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  point<std::size_t> center_{0, 0};</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> };</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  </div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">template</span></div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keyword">typename</span> T,</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">typename</span> Allocator = std::allocator<T></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="l00272"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html"> 272</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a> : <span class="keyword">public</span> detail::kernel_2d_adaptor<std::vector<T, Allocator>></div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> {</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">using</span> parent_t = detail::kernel_2d_adaptor<std::vector<T, Allocator>>;</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  </div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  </div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a>(std::size_t <a class="code" href="structboost_1_1gil_1_1size.html">size</a>,std::size_t center_y, std::size_t center_x)</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  : parent_t(<a class="code" href="structboost_1_1gil_1_1size.html">size</a>, center_y, center_x)</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>  </div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> FwdIterator></div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a>(FwdIterator elements, std::size_t <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, std::size_t center_y, std::size_t center_x)</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  : parent_t(<span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(std::sqrt(<a class="code" href="structboost_1_1gil_1_1size.html">size</a>)), center_y, center_x)</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>  detail::copy_n(elements, <a class="code" href="structboost_1_1gil_1_1size.html">size</a>, this->begin());</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  </div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a>(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a> <span class="keyword">const</span>& other) : parent_t(other) {}</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a>& operator=(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">kernel_2d</a> <span class="keyword">const</span>& other) = <span class="keywordflow">default</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="l00293"></a><span class="lineno"> 293</span>  </div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Size></div>
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<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html"> 296</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a> :</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keyword">public</span> detail::kernel_2d_adaptor<std::array<T, Size * Size>></div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> {</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">using</span> parent_t = detail::kernel_2d_adaptor<std::array<T, Size * Size>>;</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keyword">static</span> constexpr std::size_t static_size = Size;</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  static_assert(static_size > 0, <span class="stringliteral">"kernel must have size greater than 0"</span>);</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  static_assert(static_size % 2 == 1, <span class="stringliteral">"kernel size must be odd to ensure validity at the center"</span>);</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  </div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a>()</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  {</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  this->square_size = Size;</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</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>  <span class="keyword">explicit</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a>(std::size_t center_y, std::size_t center_x) :</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  parent_t(center_y, center_x)</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  {</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  this->square_size = Size;</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>  </div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> FwdIterator></div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">explicit</span> <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a>(FwdIterator elements, std::size_t center_y, std::size_t center_x)</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  : parent_t(center_y, center_x)</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  {</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  this->square_size = Size;</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  detail::copy_n(elements, Size * Size, this->begin());</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>  </div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a>(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a> <span class="keyword">const</span>& other) : parent_t(other) {}</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a>& operator=(<a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed</a> <span class="keyword">const</span>& other) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> };</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="comment">// TODO: This data member is odr-used and definition at namespace scope</span></div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="comment">// is required by C++11. Redundant and deprecated in C++17.</span></div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Size></div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> constexpr std::size_t <a class="code" href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">kernel_2d_fixed<T, Size>::static_size</a>;</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="keyword">template</span> <<span class="keyword">typename</span> Kernel></div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">inline</span> Kernel reverse_kernel_2d(Kernel <span class="keyword">const</span>& kernel)</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="l00336"></a><span class="lineno"> 336</span>  Kernel result(kernel);</div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  result.center_x() = kernel.lower_size();</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  result.center_y() = kernel.right_size();</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  std::reverse(result.begin(), result.end());</div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> }</div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  </div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  </div>
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> Allocator></div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">inline</span> kernel_2d<T, Allocator> reverse_kernel(kernel_2d<T, Allocator> <span class="keyword">const</span>& kernel)</div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> {</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">return</span> reverse_kernel_2d(kernel);</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> }</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  </div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="keyword">template</span><<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Size></div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="keyword">inline</span> kernel_2d_fixed<T, Size> reverse_kernel(kernel_2d_fixed<T, Size> <span class="keyword">const</span>& kernel)</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> {</div>
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">return</span> reverse_kernel_2d(kernel);</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> }</div>
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  </div>
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> } <span class="comment">//namespace detail</span></div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  </div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> }} <span class="comment">// namespace boost::gil</span></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> <span class="preprocessor">#endif</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassboost_1_1gil_1_1kernel__1d__fixed_html"><div class="ttname"><a href="classboost_1_1gil_1_1kernel__1d__fixed.html">boost::gil::kernel_1d_fixed</a></div><div class="ttdoc">static-size kernel</div><div class="ttdef"><b>Definition:</b> kernel.hpp:122</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="aclassboost_1_1gil_1_1kernel__1d_html"><div class="ttname"><a href="classboost_1_1gil_1_1kernel__1d.html">boost::gil::kernel_1d</a></div><div class="ttdoc">variable-size kernel</div><div class="ttdef"><b>Definition:</b> kernel.hpp:101</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1detail_1_1kernel__2d__fixed_html"><div class="ttname"><a href="classboost_1_1gil_1_1detail_1_1kernel__2d__fixed.html">boost::gil::detail::kernel_2d_fixed</a></div><div class="ttdoc">static-size kernel</div><div class="ttdef"><b>Definition:</b> kernel.hpp:296</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1detail_1_1kernel__1d__adaptor_html"><div class="ttname"><a href="classboost_1_1gil_1_1detail_1_1kernel__1d__adaptor.html">boost::gil::detail::kernel_1d_adaptor</a></div><div class="ttdoc">kernel adaptor for one-dimensional cores Core needs to provide size(),begin(),end(),...</div><div class="ttdef"><b>Definition:</b> kernel.hpp:37</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1size_html"><div class="ttname"><a href="structboost_1_1gil_1_1size.html">boost::gil::size</a></div><div class="ttdoc">Returns an integral constant type specifying the number of elements in a color base.</div><div class="ttdef"><b>Definition:</b> color_base_algorithm.hpp:42</div></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1detail_1_1kernel__2d_html"><div class="ttname"><a href="classboost_1_1gil_1_1detail_1_1kernel__2d.html">boost::gil::detail::kernel_2d</a></div><div class="ttdoc">variable-size kernel</div><div class="ttdef"><b>Definition:</b> kernel.hpp:272</div></div>
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