(PECL imagick 2, PECL imagick 3)
Imagick::modulateImage — Control the brightness, saturation, and hue
public Imagick::modulateImage ( float $brightness , float $saturation , float $hue ) : bool
Lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
brightness
saturation
hue
Returns true on success.
Example #1 Imagick::modulateImage()
<?php
function modulateImage($imagePath, $hue, $brightness, $saturation) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->modulateImage($brightness, $saturation, $hue);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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https://www.php.net/manual/en/imagick.modulateimage.php