Gmagick::modulateimage
(PECL gmagick >= Unknown)
Gmagick::modulateimage — Control the brightness, saturation, and hue
설명
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.
인수
-
brightness -
The percent change in brighness (-100 thru +100).
-
saturation -
The percent change in saturation (-100 thru +100)
-
hue -
The percent change in hue (-100 thru +100)
반환값
The Gmagick object on success
오류/예외
Throws an GmagickException on error.
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