(PECL imagick 2.0.0)
Imagick::edgeImage — Enhance edges within the image
$radius
)Enhance edges within the image with a convolution filter of the given radius. Use radius 0 and it will be auto-selected.
radius
The radius of the operation.
Restituisce TRUE
in caso di successo.
Lancia una ImagickException in caso di errore.