Gmagick::embossimage()

(PECL gmagick >= Unknown)

Returns a grayscale image with a three-dimensional effect

说明

publicGmagick::embossimage(float $radius,float $sigma): Gmagick

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。