(PECL gmagick >= Unknown)
Gmagick::chopimage — Removes a region of an image and trims
Removes a region of an image and collapses the image to occupy the removed portion.
Width of the chopped area
Height of the chopped area
X origo of the chopped area
Y origo of the chopped area
The chopped Gmagick object
エラー時に GmagickException をスローします。