Gmagick::motionblurimage()

(PECL gmagick >= Unknown)

Simulates motion blur

说明

publicGmagick::motionblurimage(float $radius,float $sigma,float $angle): Gmagick

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.

参数

$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.

返回值

The Gmagick object on success

错误／异常

错误时抛出GmagickException。