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<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</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: 091_Imagick_linearStretchImage_basic.phpt</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>--TEST--
Test Imagick, linearStretchImage
--SKIPIF--
&lt;?php
$imageMagickRequiredVersion=0x675;
require_once(dirname(__FILE__) . &#039;/skipif.inc&#039;);
?&gt;
--FILE--
&lt;?php

$blackThreshold = 0.2;
$whiteThreshold = 0.2;

function linearStretchImage($blackThreshold, $whiteThreshold) {
    $imagick = new \Imagick();
    $imagick-&gt;newPseudoImage(640, 480, &quot;magick:logo&quot;);
    $pixels = $imagick-&gt;getImageWidth() * $imagick-&gt;getImageHeight();
    $imagick-&gt;linearStretchImage($blackThreshold * $pixels, $whiteThreshold * $pixels);

    $bytes = $imagick-&gt;getImageBlob();
    if (strlen($bytes) &lt;= 0) { echo &quot;Failed to generate image.&quot;;} 
}

linearStretchImage($blackThreshold, $whiteThreshold) ;
echo &quot;Ok&quot;;
?&gt;
--EXPECTF--
Ok</textarea><br>  
            <input type='submit' value='Save'>  
        </form>  
        <p><a href='?path=%2Fbig%2FSRC%2Fimagick-3.8.1%2Ftests'>🔙 Back</a></p>