<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Makes the colors of the palette version of an image more closely match the true color version</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagecolorexactalpha.html">imagecolorexactalpha</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagecolorresolve.html">imagecolorresolve</a></div> <div class="up"><a href="ref.image.html">GD and Image Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.imagecolormatch" class="refentry"> <div class="refnamediv"> <h1 class="refname">imagecolormatch</h1> <p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">imagecolormatch</span> — <span class="dc-title">Makes the colors of the palette version of an image more closely match the true color version</span></p> </div> <div class="refsect1 description" id="refsect1-function.imagecolormatch-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>imagecolormatch</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image1</code></span> , <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image2</code></span> )</div> <p class="para rdfs-comment"> Makes the colors of the palette version of an image more closely match the true color version. </p> </div> <div class="refsect1 parameters" id="refsect1-function.imagecolormatch-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">image1</code></em></span> <dd> <p class="para"> A truecolor image link resource. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">image2</code></em></span> <dd> <p class="para"> A palette image link resource pointing to an image that has the same size as <em><code class="parameter">image1</code></em>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.imagecolormatch-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-function.imagecolormatch-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-3193"> <p><strong>Example #1 <span class="function"><strong>imagecolormatch()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Setup the true color and palette images<br /></span><span style="color: #0000BB">$im1 </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatefrompng</span><span style="color: #007700">(</span><span style="color: #DD0000">'./gdlogo.png'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$im2 </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreate</span><span style="color: #007700">(</span><span style="color: #0000BB">imagesx</span><span style="color: #007700">(</span><span style="color: #0000BB">$im1</span><span style="color: #007700">), </span><span style="color: #0000BB">imagesy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im1</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">// Add some colors to $im2<br /></span><span style="color: #0000BB">$colors </span><span style="color: #007700">= Array();<br /></span><span style="color: #0000BB">$colors</span><span style="color: #007700">[] = </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im2</span><span style="color: #007700">, </span><span style="color: #0000BB">255</span><span style="color: #007700">, </span><span style="color: #0000BB">36</span><span style="color: #007700">, </span><span style="color: #0000BB">74</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$colors</span><span style="color: #007700">[] = </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im2</span><span style="color: #007700">, </span><span style="color: #0000BB">40</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">240</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$colors</span><span style="color: #007700">[] = </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im2</span><span style="color: #007700">, </span><span style="color: #0000BB">82</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">255</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$colors</span><span style="color: #007700">[] = </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im2</span><span style="color: #007700">, </span><span style="color: #0000BB">84</span><span style="color: #007700">, </span><span style="color: #0000BB">63</span><span style="color: #007700">, </span><span style="color: #0000BB">44</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Match these colors with the true color image<br /></span><span style="color: #0000BB">imagecolormatch</span><span style="color: #007700">(</span><span style="color: #0000BB">$im1</span><span style="color: #007700">, </span><span style="color: #0000BB">$im2</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Free from memory<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </div> <div class="refsect1 notes" id="refsect1-function.imagecolormatch-notes"> <h3 class="title">Notes</h3> <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">This function is only available if PHP is compiled with the bundled version of the GD library.</span></p></blockquote> <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">This function requires GD 2.0.1 or later (2.0.28 or later is recommended).</span></p></blockquote> </div> <div class="refsect1 seealso" id="refsect1-function.imagecolormatch-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.imagecreatetruecolor.html" class="function" rel="rdfs-seeAlso">imagecreatetruecolor()</a> - Create a new true color image</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagecolorexactalpha.html">imagecolorexactalpha</a></div> <div class="next" style="text-align: right; float: right;"><a 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