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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Adaptively sharpen the image</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagick-adaptiveresizeimage.html">Imagick::adaptiveResizeImage</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagick-adaptivethresholdimage.html">Imagick::adaptiveThresholdImage</a></div> <div class="up"><a href="class.imagick.html">The Imagick class</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.imagick-adaptivesharpenimage" class="refentry"> <div class="refnamediv"> <h1 class="refname">Imagick::adaptiveSharpenImage</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">Imagick::adaptiveSharpenImage</span> — <span class="dc-title">Adaptively sharpen the image</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>Imagick::adaptiveSharpenImage</b></b></span> ( <span class="methodparam"><span class="type">float</span> <tt class="parameter">$radius</tt></span> , <span class="methodparam"><span class="type">float</span> <tt class="parameter">$sigma</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$channel</tt></span> ] )</div> <div class="warning"><b class="warning">Warning</b><p class="simpara">This function iscurrently not documented; only its argument list is available.</p></div> <p class="para"> Adaptively sharpen the image by sharpening more intensely near image edges and less intensely far from edges. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">radius</tt></i></span> <dd> <p class="para"> The radius of the Gaussian, in pixels, not counting the center pixel. Use 0 for auto-select. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">sigma</tt></i></span> <dd> <p class="para"> The standard deviation of the Gaussian, in pixels. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">channel</tt></i></span> <dd> <p class="para"> Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this list of <a href="imagick.constants.html#imagick.constants.channel" class="link">channel constants</a>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>Imagick::adaptiveSharpenImage()</b> example</b></p> <div class="example-contents"><p> Adaptively sharpen the image with radius 2 and sigma 1. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #007700">try {<br /> </span><span style="color: #0000BB">$image </span><span style="color: #007700">= new </span><span style="color: #0000BB">Imagick</span><span style="color: #007700">(</span><span style="color: #DD0000">'image.png'</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">$image</span><span style="color: #007700">-></span><span style="color: #0000BB">adaptiveSharpenImage</span><span style="color: #007700">(</span><span style="color: #0000BB">2</span><span style="color: #007700">,</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br />} catch(</span><span style="color: #0000BB">ImagickException $e</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Error: ' </span><span style="color: #007700">, </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">getMessage</span><span style="color: #007700">();<br /> die();<br />}<br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">'Content-type: image/png'</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$image</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.imagick-sharpenimage.html" class="function" rel="rdfs-seeAlso">Imagick::sharpenImage()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagick-adaptiveresizeimage.html">Imagick::adaptiveResizeImage</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagick-adaptivethresholdimage.html">Imagick::adaptiveThresholdImage</a></div> <div class="up"><a href="class.imagick.html">The Imagick class</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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