(PECL gmagick >= Unknown)
Gmagick::borderimage — Surrounds the image with a border
Surrounds the image with a border of the color defined by the bordercolor GmagickPixel object or a color string.
GmagickPixel object or a string containing the border color
Border width
Border height
The Gmagick object with border defined
エラー時に GmagickException をスローします。