Imagick::edgeImage

(PECL imagick 2.0.0)

Imagick::edgeImage — Enhance edges within the image

bool Imagick::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.

成功时返回 TRUE .

错误时抛出 ImagickException .