Imagick::modulateImage
(PECL imagick 2, PECL imagick 3)
Imagick::modulateImage — Control the brightness, saturation, and hue
Description
public Imagick::modulateImage(float
$brightness, float $saturation, float $hue): boolLets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
Parameters
-
brightness -
-
saturation -
-
hue -
Return Values
Returns true on success.
Examples
Example #1 Imagick::modulateImage()
<?php
function modulateImage($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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