<!-- Copyright 2008 Lubomir Bourdev and Hailin Jin Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> <!-- Copyright 2005-2007 Adobe Systems Incorporated Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt or a copy at http://stlab.adobe.com/licenses.html) Some files are held under additional license. Please see "http://stlab.adobe.com/licenses.html" for more information. --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <TITLE>Generic Image Library: channel_invert</TITLE> <META HTTP-EQUIV="content-type" CONTENT="text/html;charset=ISO-8859-1"/> <LINK TYPE="text/css" REL="stylesheet" HREF="adobe_source.css"/> </head> <body> <table border="0" cellspacing="0" cellpadding="0" style='width: 100%; margin: 0; padding: 0'><tr> <td width="100%" valign="top" style='padding-left: 10px; padding-right: 10px; padding-bottom: 10px'> <div class="qindex"><a class="qindex" href="index.html">Modules</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="../index.html">GIL Home Page</a> </div> <!-- End Header --> <!-- Generated by Doxygen 1.5.6 --> <div class="contents"> <h1>channel_invert<br> <small> [<a class="el" href="g_i_l_0097.html">Algorithms and Utility Functions</a>]</small> </h1><hr><a name="_details"></a><h2>Detailed Description</h2> Returns the inverse of a channel. result = max_value - x + min_value. <p> Example: <div class="fragment"><pre class="fragment"><span class="comment">// bits8 == uint8_t == unsigned char</span> bits8 x=255; bits8 inv = <a class="code" href="g_i_l_0101.html#ge2e0267865f89610ef26148874a04bb5" title="Default implementation. Provide overloads for performance.">channel_invert</a>(x); assert(inv == 0); </pre></div> <p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td></td></tr> <tr><td colspan="2"><br><h2>Functions</h2></td></tr> <tr><td class="memTemplParams" nowrap colspan="2"><a class="anchor" name="ge2e0267865f89610ef26148874a04bb5"></a><!-- doxytag: member="ChannelInvertAlgorithm::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> <hr size="1"><address style="text-align: right;"><small>Generated on Sat May 2 13:50:17 2009 for Generic Image Library by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address> </body> </html>