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<div class="title">channel_algorithm.hpp File Reference</div> </div>
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<p>Channel algorithms.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <boost/config.hpp></code><br/>
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<code>#include <boost/mpl/less.hpp></code><br/>
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<code>#include <boost/mpl/integral_c.hpp></code><br/>
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<code>#include <boost/mpl/greater.hpp></code><br/>
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<code>#include <boost/type_traits.hpp></code><br/>
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<code>#include "<a class="el" href="gil__config_8hpp_source.html">gil_config.hpp</a>"</code><br/>
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<code>#include "<a class="el" href="channel_8hpp_source.html">channel.hpp</a>"</code><br/>
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<code>#include "promote_integral.hpp"</code><br/>
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<code>#include "<a class="el" href="typedefs_8hpp_source.html">typedefs.hpp</a>"</code><br/>
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<code>#include <limits></code><br/>
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</div>
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<p><a href="channel__algorithm_8hpp_source.html">Go to the source code of this file.</a></p>
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Classes</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1detail_1_1channel__converter__unsigned__impl.html">channel_converter_unsigned_impl< SrcChannelV, DstChannelV, SrcIsIntegral, DstIsIntegral ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This is the default implementation. Performance specializatons are provided. <a href="structboost_1_1gil_1_1detail_1_1channel__converter__unsigned__impl.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__converter__unsigned_3_01_t_00_01_t_01_4.html">channel_converter_unsigned< T, T ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Converting a channel to itself - identity operation. <a href="structboost_1_1gil_1_1channel__converter__unsigned_3_01_t_00_01_t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1detail_1_1channel__converter__unsigned__impl.html">channel_converter_unsigned_impl< SrcChannelV, DstChannelV, SrcIsIntegral, DstIsIntegral ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This is the default implementation. Performance specializatons are provided. <a href="structboost_1_1gil_1_1detail_1_1channel__converter__unsigned__impl.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__converter__unsigned_3_01float32__t_00_01_dst_channel_v_01_4.html">channel_converter_unsigned< float32_t, DstChannelV ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">float32_t conversion <a href="structboost_1_1gil_1_1channel__converter__unsigned_3_01float32__t_00_01_dst_channel_v_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__converter__unsigned_3_01uint32__t_00_01float32__t_01_4.html">channel_converter_unsigned< uint32_t, float32_t ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">32 bit <-> float channel conversion <a href="structboost_1_1gil_1_1channel__converter__unsigned_3_01uint32__t_00_01float32__t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__converter__unsigned_3_01float32__t_00_01uint32__t_01_4.html">channel_converter_unsigned< float32_t, uint32_t ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">32 bit <-> float channel conversion <a href="structboost_1_1gil_1_1channel__converter__unsigned_3_01float32__t_00_01uint32__t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__converter.html">channel_converter< SrcChannelV, DstChannelV ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A unary function object converting between channel types. <a href="structboost_1_1gil_1_1channel__converter.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1default__channel__converter.html">default_channel_converter</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Same as <a class="el" href="structboost_1_1gil_1_1channel__converter.html" title="A unary function object converting between channel types. ">channel_converter</a>, except it takes the destination channel by reference, which allows us to move the templates from the class level to the method level. This is important when invoking it on heterogeneous pixels. <a href="structboost_1_1gil_1_1default__channel__converter.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__multiplier__unsigned.html">channel_multiplier_unsigned< ChannelValue ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This is the default implementation. Performance specializatons are provided. <a href="structboost_1_1gil_1_1channel__multiplier__unsigned.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01uint8__t_01_4.html">channel_multiplier_unsigned< uint8_t ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for 8-bit unsigned channels. <a href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01uint8__t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01uint16__t_01_4.html">channel_multiplier_unsigned< uint16_t ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for 16-bit unsigned channels. <a href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01uint16__t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01float32__t_01_4.html">channel_multiplier_unsigned< float32_t ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for float 0..1 channels. <a href="structboost_1_1gil_1_1channel__multiplier__unsigned_3_01float32__t_01_4.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structboost_1_1gil_1_1channel__multiplier.html">channel_multiplier< ChannelValue ></a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">A function object to multiply two channels. result = a * b / max_value. <a href="structboost_1_1gil_1_1channel__multiplier.html#details">More...</a><br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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Namespaces</h2></td></tr>
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<tr class="memdesc:namespaceboost"><td class="mdescLeft"> </td><td class="mdescRight">Pixel 2D LOCATOR. <br/></td></tr>
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Functions</h2></td></tr>
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<tr class="memitem:ga1ca10b1d27bc2f2ce4906b8890e613a5"><td class="memTemplParams" colspan="2"><a class="anchor" id="ga1ca10b1d27bc2f2ce4906b8890e613a5"></a>
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template<typename DstChannel , typename SrcChannel > </td></tr>
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<tr class="memitem:ga1ca10b1d27bc2f2ce4906b8890e613a5"><td class="memTemplItemLeft" align="right" valign="top">channel_traits< DstChannel ><br class="typebreak"/>
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::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group___channel_convert_algorithm.html#ga1ca10b1d27bc2f2ce4906b8890e613a5">channel_convert</a> (const SrcChannel &src)</td></tr>
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<tr class="memdesc:ga1ca10b1d27bc2f2ce4906b8890e613a5"><td class="mdescLeft"> </td><td class="mdescRight">Converting from one channel type to another. <br/></td></tr>
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<tr class="separator:ga1ca10b1d27bc2f2ce4906b8890e613a5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a36fdfb4869446c1151d0850faf72e3b3"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a36fdfb4869446c1151d0850faf72e3b3"></a>
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uint32_t </td><td class="memItemRight" valign="bottom"><b>div255</b> (uint32_t in)</td></tr>
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<tr class="separator:a36fdfb4869446c1151d0850faf72e3b3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a114bcacf9a7cce97638fe8704d44559f"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a114bcacf9a7cce97638fe8704d44559f"></a>
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uint32_t </td><td class="memItemRight" valign="bottom"><b>div32768</b> (uint32_t in)</td></tr>
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<tr class="separator:a114bcacf9a7cce97638fe8704d44559f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga0af81efbbb77846afe2570f242d2b974"><td class="memTemplParams" colspan="2"><a class="anchor" id="ga0af81efbbb77846afe2570f242d2b974"></a>
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template<typename Channel > </td></tr>
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<tr class="memitem:ga0af81efbbb77846afe2570f242d2b974"><td class="memTemplItemLeft" align="right" valign="top">channel_traits< Channel ><br class="typebreak"/>
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::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group___channel_multiply_algorithm.html#ga0af81efbbb77846afe2570f242d2b974">channel_multiply</a> (Channel a, Channel b)</td></tr>
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<tr class="memdesc:ga0af81efbbb77846afe2570f242d2b974"><td class="mdescLeft"> </td><td class="mdescRight">A function multiplying two channels. result = a * b / max_value. <br/></td></tr>
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<tr class="separator:ga0af81efbbb77846afe2570f242d2b974"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gabbbc7b27d9f61ff45cf5ea7ac21051f5"><td class="memTemplParams" colspan="2"><a class="anchor" id="gabbbc7b27d9f61ff45cf5ea7ac21051f5"></a>
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template<typename Channel > </td></tr>
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<tr class="memitem:gabbbc7b27d9f61ff45cf5ea7ac21051f5"><td class="memTemplItemLeft" align="right" valign="top">channel_traits< Channel ><br class="typebreak"/>
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::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group___channel_invert_algorithm.html#gabbbc7b27d9f61ff45cf5ea7ac21051f5">channel_invert</a> (Channel x)</td></tr>
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<tr class="memdesc:gabbbc7b27d9f61ff45cf5ea7ac21051f5"><td class="mdescLeft"> </td><td class="mdescRight">Default implementation. Provide overloads for performance. <br/></td></tr>
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<tr class="separator:gabbbc7b27d9f61ff45cf5ea7ac21051f5"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Channel algorithms. </p>
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<dl class="section author"><dt>Author</dt><dd>Lubomir Bourdev and Hailin Jin <br/>
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Adobe Systems Incorporated </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>2005-2007 <br/>
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Last updated on May 6, 2007</dd></dl>
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<p>Definitions of standard GIL 8-bit, 16-bit, 32-bit channels </p>
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