Gmagick::edgeimage

(PECL gmagick >= Unknown)

Gmagick::edgeimage — Enhance edges within the image

public Gmagick Gmagick::edgeimage ( float $radius )

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

The Gmagick object with edges enhanced.

错误时抛出 GmagickException。