Gmagick::charcoalimage
(PECL gmagick >= Unknown)
Gmagick::charcoalimage — Simulates a charcoal drawing
说明
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。
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