The 5th Annual China PHP Conference


(PHP 4, PHP 5, PHP 7)

imagegammacorrect对 GD 图像应用 gamma 修正


bool imagegammacorrect ( resource $image , float $inputgamma , float $outputgamma )

imagegammacorrect() 函数用给定的输入 gamma 值 inputgamma 和输出 gamma 值 outputgamma 对一幅 GD 图像流(image)应用 gamma 修正。

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