Imagick::autoLevelImage
(PECL imagick 3 >= 3.3.0)
Imagick::autoLevelImage — Description
Descrierea
public Imagick::autoLevelImage
( int
$channel = Imagick::CHANNEL_DEFAULT
) : boolAdjusts the levels of a particular image channel by scaling the minimum and maximum values to the full quantum range.
Parametri
-
channel -
Which channel should the auto-levelling should be done on.
Valorile întoarse
Întoarce true în caz de succes.
Exemple
Example #1 Imagick::autoLevelImage()
<?php
function autoLevelImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->autoLevelImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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