Gmagick::motionblurimage
(PECL gmagick >= Unknown)
Gmagick::motionblurimage — Simulates motion blur
說明
public void Gmagick::motionblurimage
( float
$radius
, float $sigma
, float $angle
)Simulates motion blur. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and MotionBlurImage() selects a suitable radius for you. Angle gives the angle of the blurring motion.
參數
-
radius -
The radius of the Gaussian, in pixels, not counting the center pixel.
-
sigma -
The standard deviation of the Gaussian, in pixels.
-
angle -
Apply the effect along this angle.
回傳值
The Gmagick object on success
錯誤/例外
錯誤時拋出 GmagickException。
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