Gmagick::modulateimage
PHP function
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(PECL gmagick >= Unknown)
Control the brightness, saturation, and hue
Description
Gmagick::modulateimage(float $brightness, float $saturation, float $hue): Gmagick
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.
Parameters
brightnessThe percent change in brighness (-100 thru +100).
saturationThe percent change in saturation (-100 thru +100)
hueThe percent change in hue (-100 thru +100)
Return Values
The Gmagick object.
Errors/Exceptions
Throw