Gmagick::embossimage
(PECL gmagick >= Unknown)
Gmagick::embossimage — Returns a grayscale image with a three-dimensional effect
说明
Returns a grayscale image with a three-dimensional effect. 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 it will choose a suitable radius for you.
参数
-
radius -
The radius of the effect.
-
sigma -
The sigma of the effect.
返回值
The embossed Gmagick object.
错误／异常
错误时抛出 GmagickException。
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