Gmagick::charcoalimage()
(PECL gmagick >= Unknown)
Simulates a charcoal drawing
说明
public Gmagick::charcoalimage(float $radius,float $sigma): Gmagick
Simulates a charcoal drawing.
参数
- $radius
The radius of the Gaussian, in pixels, not counting the center pixel
- $sigma
The standard deviation of the Gaussian, in pixels
返回值
The Gmagick object with charcoal simulation
错误/异常
错误时抛出GmagickException。