Gmagick::edgeimage()

(PECL gmagick >= Unknown)

Enhance edges within the image

说明

publicGmagick::edgeimage(float $radius): Gmagick

Enhance edges within the image with a convolution filter of the given radius. Use radius 0 and it will be auto-selected.

参数

$radius

The radius of the operation.

返回值

The Gmagick object with edges enhanced.

错误／异常

错误时抛出GmagickException。