Imagick::modulateImage
(PECL imagick 2.0.0)
Imagick::modulateImage — Control the brightness, saturation, and hue
说明
Imagick::modulateImage (
float
$brightness ,
float $saturation ,
float $hue ) :
bool
Lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.
参数
-
brightness -
-
saturation -
-
hue -
返回值
成功时返回 TRUE。
范例
Example #1 Imagick::modulateImage()
<?php
function modulateImage($imagePath, $hue, $brightness, $saturation) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->modulateImage($brightness, $saturation, $hue);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
