Gmagick::getimagegamma

(PECL gmagick >= Unknown)

Gmagick::getimagegamma — Gets the image gamma

说明

public Gmagick::getimagegamma ( void ) : float

Gets the image gamma

参数

此函数没有参数。

返回值

Returns the image gamma on success

错误／异常

错误时抛出 GmagickException。

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