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<title>Get the index of the color which has the hue, white and blackness</title>
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<div class="refnamediv">
<h1 class="refname">imagecolorclosesthwb</h1>
<p class="verinfo">(PHP 4 >= 4.0.1, PHP 5)</p><p class="refpurpose"><span class="refname">imagecolorclosesthwb</span> — <span class="dc-title">Get the index of the color which has the hue, white and blackness</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.imagecolorclosesthwb-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>imagecolorclosesthwb</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$red</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$green</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$blue</code></span>
)</div>
<p class="para rdfs-comment">
Get the index of the color which has the hue,
white and blackness nearest the given color.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.imagecolorclosesthwb-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">
image</code></em></span><dd>
<p class="para">An image resource, returned by one of the image creation functions,
such as <span class="function"><a href="function.imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span>.</p></dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">red</code></em></span>
<dd>
<p class="para">Value of red component.</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">green</code></em></span>
<dd>
<p class="para">Value of green component.</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">blue</code></em></span>
<dd>
<p class="para">Value of blue component.</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.imagecolorclosesthwb-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an integer with the index of the color which has
the hue, white and blackness nearest the given color.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.imagecolorclosesthwb-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-3189">
<p><strong>Example #1 Example of using <span class="function"><strong>imagecolorclosesthwb()</strong></span></strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatefromgif</span><span style="color: #007700">(</span><span style="color: #DD0000">'php.gif'</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #DD0000">'HWB: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">imagecolorclosesthwb</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">, </span><span style="color: #0000BB">116</span><span style="color: #007700">, </span><span style="color: #0000BB">115</span><span style="color: #007700">, </span><span style="color: #0000BB">152</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
HWB: 33
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.imagecolorclosesthwb-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>5.3.0</td>
<td>
This function is now available on Windows
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.imagecolorclosesthwb-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.imagecolorclosest.html" class="function" rel="rdfs-seeAlso">imagecolorclosest()</a> - Get the index of the closest color to the specified color</span></li>
</ul>
</p>
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