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a { color:#6cf; text-decoration:none; }  
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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fimagick-3.8.1%2F'>imagick-3.8.1</a>/<a href='?path=%2Fbig%2FSRC%2Fimagick-3.8.1%2Ftests%2F'>tests</a>/</p><hr><h3>✏️ Editing: 047_Imagick_convolveImage_6.phpt</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>--TEST--
Test Imagick, convolveImage
--SKIPIF--
&lt;?php
$imageMagickRequiredVersion=0x675;
$imageMagickBelowVersion=0x700;
require_once(dirname(__FILE__) . &#039;/skipif.inc&#039;);
?&gt;
--FILE--
&lt;?php

$bias = 0.5;
$kernelMatrix = array (
  0 =&gt; -1,
  1 =&gt; -1,
  2 =&gt; -1,
  3 =&gt; -1,
  4 =&gt; 8,
  5 =&gt; -1,
  6 =&gt; -1,
  7 =&gt; -1,
  8 =&gt; -1,
);

function convolveImage($bias, $kernelMatrix) {
    $imagick = new \Imagick();
    $imagick-&gt;newPseudoImage(640, 480, &quot;magick:logo&quot;);
    
    //$edgeFindingKernel = [-1, -1, -1, -1, 8, -1, -1, -1, -1,];
    
    $imagick-&gt;setImageBias($bias * \Imagick::getQuantum());
    $imagick-&gt;convolveImage($kernelMatrix);
    $bytes = $imagick-&gt;getImageBlob();
    if (strlen($bytes) &lt;= 0) { echo &quot;Failed to generate image.&quot;;} 
}

convolveImage($bias, $kernelMatrix) ;
echo &quot;Ok&quot;;
?&gt;
--EXPECTF--
Deprecated: %s Imagick::setImageBias() is deprecated in %s
Ok
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