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| <h1>channel_algorithm.hpp File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2> |
| Channel algorithms. |
| <p> |
| <dl class="author" compact><dt><b>Author:</b></dt><dd>Lubomir Bourdev and Hailin Jin <br> |
| Adobe Systems Incorporated </dd></dl> |
| <dl class="date" compact><dt><b>Date:</b></dt><dd>2005-2007 <br> |
| Last updated on May 6, 2007</dd></dl> |
| Definitions of standard GIL 8-bit, 16-bit, 32-bit channels |
| <p> |
| <code>#include "<a class="el" href="g_i_l_0093.html">gil_config.hpp</a>"</code><br> |
| <code>#include "<a class="el" href="g_i_l_0014.html">channel.hpp</a>"</code><br> |
| <code>#include <boost/mpl/less.hpp></code><br> |
| <code>#include <boost/mpl/integral_c.hpp></code><br> |
| <code>#include <boost/mpl/greater.hpp></code><br> |
| <code>#include <boost/type_traits.hpp></code><br> |
| |
| <p> |
| <a href="g_i_l_0015.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0"> |
| <tr><td></td></tr> |
| <tr><td colspan="2"><br><h2>Namespaces</h2></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">namespace </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceboost.html">boost</a></td></tr> |
| |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">namespace </td><td class="memItemRight" valign="bottom"><b>boost::gil</b></td></tr> |
| |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">namespace </td><td class="memItemRight" valign="bottom"><b>boost::gil::detail</b></td></tr> |
| |
| <tr><td colspan="2"><br><h2>Classes</h2></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0410.html">channel_converter_unsigned< T, T ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Converting a channel to itself - identity operation. <a href="g_i_l_0410.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0477.html">channel_converter_unsigned_impl</a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">This is the default implementation. Performance specializatons are provided. <a href="g_i_l_0477.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0414.html">channel_converter_unsigned< bits32f, DstChannelV ></a></td></tr> |
| |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0412.html">channel_converter_unsigned< bits32, bits32f ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">32 bit <-> float channel conversion <a href="g_i_l_0412.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0416.html">channel_converter_unsigned< bits32f, bits32 ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">32 bit <-> float channel conversion <a href="g_i_l_0416.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0408.html">channel_converter</a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">A unary function object converting between channel types. <a href="g_i_l_0408.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0450.html">default_channel_converter</a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Same as <a class="el" href="g_i_l_0408.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="g_i_l_0450.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0422.html">channel_multiplier_unsigned</a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">This is the default implementation. Performance specializatons are provided. <a href="g_i_l_0422.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0428.html">channel_multiplier_unsigned< bits8 ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for 8-bit unsigned channels. <a href="g_i_l_0428.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0424.html">channel_multiplier_unsigned< bits16 ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for 16-bit unsigned channels. <a href="g_i_l_0424.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0426.html">channel_multiplier_unsigned< bits32f ></a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Specialization of channel_multiply for float 0..1 channels. <a href="g_i_l_0426.html#_details">More...</a><br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="g_i_l_0420.html">channel_multiplier</a></td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">A function object to multiply two channels. result = a * b / max_value. <a href="g_i_l_0420.html#_details">More...</a><br></td></tr> |
| <tr><td colspan="2"><br><h2>Functions</h2></td></tr> |
| <tr><td class="memTemplParams" nowrap colspan="2"><a class="anchor" name="gf04e6ac30a35a1f68a8bb84730e34786"></a><!-- doxytag: member="channel_algorithm.hpp::channel_convert" ref="gf04e6ac30a35a1f68a8bb84730e34786" args="(SrcChannel src)" --> |
| template<typename DstChannel, typename SrcChannel> </td></tr> |
| <tr><td class="memTemplItemLeft" nowrap align="right" valign="top">channel_traits< DstChannel ><br> |
| ::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="g_i_l_0099.html#gf04e6ac30a35a1f68a8bb84730e34786">channel_convert</a> (SrcChannel src)</td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Converting from one channel type to another. <br></td></tr> |
| <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="36fdfb4869446c1151d0850faf72e3b3"></a><!-- doxytag: member="channel_algorithm.hpp::div255" ref="36fdfb4869446c1151d0850faf72e3b3" args="(uint32_t in)" --> |
| uint32_t </td><td class="memItemRight" valign="bottom"><b>div255</b> (uint32_t in)</td></tr> |
| |
| <tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="114bcacf9a7cce97638fe8704d44559f"></a><!-- doxytag: member="channel_algorithm.hpp::div32768" ref="114bcacf9a7cce97638fe8704d44559f" args="(uint32_t in)" --> |
| uint32_t </td><td class="memItemRight" valign="bottom"><b>div32768</b> (uint32_t in)</td></tr> |
| |
| <tr><td class="memTemplParams" nowrap colspan="2"><a class="anchor" name="gf73b2a47a7877767534df0eee46dda17"></a><!-- doxytag: member="channel_algorithm.hpp::channel_multiply" ref="gf73b2a47a7877767534df0eee46dda17" args="(Channel a, Channel b)" --> |
| template<typename Channel> </td></tr> |
| <tr><td class="memTemplItemLeft" nowrap align="right" valign="top">channel_traits< Channel ><br> |
| ::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="g_i_l_0103.html#gf73b2a47a7877767534df0eee46dda17">channel_multiply</a> (Channel a, Channel b)</td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">A function multiplying two channels. result = a * b / max_value. <br></td></tr> |
| <tr><td class="memTemplParams" nowrap colspan="2"><a class="anchor" name="ge2e0267865f89610ef26148874a04bb5"></a><!-- doxytag: member="channel_algorithm.hpp::channel_invert" ref="ge2e0267865f89610ef26148874a04bb5" args="(Channel x)" --> |
| template<typename Channel> </td></tr> |
| <tr><td class="memTemplItemLeft" nowrap align="right" valign="top">channel_traits< Channel ><br> |
| ::value_type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5">channel_invert</a> (Channel x)</td></tr> |
| |
| <tr><td class="mdescLeft"> </td><td class="mdescRight">Default implementation. Provide overloads for performance. <br></td></tr> |
| </table> |
| </div> |
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