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Imagick::autoLevelImage — Description
$CHANNEL
= Imagick::CHANNEL_DEFAULT
] )Adjusts the levels of a particular image channel by scaling the minimum and maximum values to the full quantum range.
CHANNEL
Which channel should the auto-levelling should be done on.
Example #1 Imagick::autoLevelImage()
<?php
function autoLevelImage ( $imagePath ) {
$imagick = new \ Imagick ( realpath ( $imagePath ));
$imagick -> autoLevelImage ();
header ( "Content-Type: image/jpg" );
echo $imagick -> getImageBlob ();
}
?>