(PECL gmagick >= Unknown)
Gmagick::getimagegreenprimary — Returns the chromaticy green primary point
Returns the chromaticity green primary point. Returns an array with the keys "x" and "y".
此函數沒(méi)有參數。
Returns an array with the keys "x" and "y" on success.
錯誤時(shí)拋出 GmagickException。