Imagick::modulateImage
(No version information available, might be only in CVS)
Imagick::modulateImage — Control the brightness, saturation, and hue
說明
bool Imagick::modulateImage
( float $brightness
, float $saturation
, float $hue
)
Warning
此函式目前沒有參考文件；只有引數列表。
Warning
本函式是實驗性的。這個函式的行為、名稱、和關於此函式的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此函式需自行承擔風險。
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.
參數
- brightness
-
- saturation
-
- hue
-
Return值
Returns TRUE on success.