Imagick
PHP Manual

Imagick::edgeImage

(PECL imagick 2.0.0)

Imagick::edgeImageEnhance edges within the image

说明

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.

参数

radius

The radius of the operation.

返回值

成功时返回 TRUE

错误/异常

错误时抛出 ImagickException。


Imagick
PHP Manual