Gmagick::modulateimage

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Php/docs/latest/gmagick.modulateimage


Gmagick::modulateimage

(PECL gmagick >= Unknown)

Gmagick::modulateimageControl the brightness, saturation, and hue


Description

public 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

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)


Return Values

The Gmagick object.


Errors/Exceptions

Throws an GmagickException on error.


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https://www.php.net/manual/en/gmagick.modulateimage.php