PHP 7.2.0 Release Candidate 4 Released

Imagick::autoLevelImage

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Imagick::autoLevelImageDescription

Descrição

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.

Parâmetros

CHANNEL

Which channel should the auto-levelling should be done on.

Valor Retornado

Exemplos

Exemplo #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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