Here's a example of this function:
<?php
$img = new Imagick();
$img->readImage($image_file_name);
// leave hue at 100%, drop saturation by 100%, leave brightness at 100%
$img->modulateImage(100, 0, 100);
$img->writeImage($thumb_file_name);
$img->clear();
$img->destroy();
?>
Imagick::modulateImage
(PECL imagick 2, PECL imagick 3)
Imagick::modulateImage — Control the brightness, saturation, and hue
Descrierea
public Imagick::modulateImage
( float
$brightness
, float $saturation
, float $hue
) : boolLets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
Parametri
-
brightness -
-
saturation -
-
hue -
Valorile întoarse
Întoarce true în caz de succes.
Exemple
Example #1 Imagick::modulateImage()
<?php
function modulateImage($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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