Imagick
PHP Manual

Imagick::edgeImage

(PECL imagick 2.0.0)

Imagick::edgeImage — Enhance edges within the image

Description

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.

Parameters

radius

The radius of the operation.

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Imagick
PHP Manual