(No version information available, might only be in Git)
Description
public void Imagick::autoLevelImage ([ string $CHANNEL = Imagick::CHANNEL_DEFAULT ] )
Adjusts the levels of a particular image channel by scaling the minimum and maximum values to the full quantum range.
Parameters:
CHANNEL
Which channel should the auto-levelling should be done on.
Returns:
Examples:
Imagick::autoLevelImage()
<?php
function autoLevelImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->autoLevelImage();
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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