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97 lines
7.5 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>使一个图像中调色板版本的颜色与真彩色版本更能匹配</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.imagecolormatch" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">imagecolormatch</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imagecolormatch</span> — <span class="dc-title">使一个图像中调色板版本的颜色与真彩色版本更能匹配</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.imagecolormatch-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>imagecolormatch</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image1</code></span>
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, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image2</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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使一个图像中调色板版本的颜色与真彩色版本更能匹配。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.imagecolormatch-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">image1</code></dt>
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<dd>
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<p class="para">
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真彩色图像连接资源。
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</p>
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</dd>
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<dt>
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<code class="parameter">image2</code></dt>
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<dd>
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<p class="para">
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必须是调色板图像，而且和 <code class="parameter">image1</code> 的大小必须相同。
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.imagecolormatch-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.imagecolormatch-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-3668">
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<p><strong>Example #1 <span class="function"><strong>imagecolormatch()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<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>
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</span>
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 notes" id="refsect1-function.imagecolormatch-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数仅在与 GD 库捆绑编译的 PHP 版本中可用。</span></p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数需要 GD 2.0.1 或更高版本(推荐 2.0.28 及更高版本)。</span></p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.imagecolormatch-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="imagecreatetruecolor.html" class="function" rel="rdfs-seeAlso">imagecreatetruecolor()</a> - 新建一个真彩色图像</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |