Gmagick::charcoalimage

(PECL gmagick >= Unknown)

Gmagick::charcoalimage — Simulates a charcoal drawing

public Gmagick Gmagick::charcoalimage ( float $radius , float $sigma )

Simulates a charcoal drawing.

radius: The radius of the Gaussian, in pixels, not counting the center pixel
sigma: The standard deviation of the Gaussian, in pixels

The Gmagick object with charcoal simulation

错误时抛出GmagickException.