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This document uses PHP Chinese website manual Release
(PECL gmagick >= Unknown)
Gmagick::getimageextrema — Gets the extrema for the image
Returns an associative array with the keys "min" and "max". 错误时抛出 GmagickException。
此函数没有参数。
Returns an associative array with the keys "min" and "max".
错误时抛出 GmagickException。