(PHP 4, PHP 5, PHP 7)
imagegammacorrect — 锟斤拷 GD 图锟斤拷应锟斤拷 gamma 锟斤拷锟斤拷
$image
, float $inputgamma
, float $outputgamma
) : bool
imagegammacorrect() 锟斤拷锟斤拷锟矫革拷锟斤拷锟斤拷锟斤拷锟斤拷 gamma 值
inputgamma 锟斤拷锟斤拷锟� gamma 值
outputgamma 锟斤拷一锟斤拷 GD
图锟斤拷锟斤拷锟斤拷image锟斤拷应锟斤拷 gamma 锟斤拷锟斤拷锟斤拷