imagegammacorrect
(PHP 3>= 3.0.13, PHP 4 , PHP 5)
imagegammacorrect -- Apply a gamma correction to a GD image
Description
int
imagegammacorrect ( resource image, float inputgamma, float outputgamma)
The imagegammacorrect() function applies gamma
correction to a gd image stream (image) given
an input gamma, the parameter inputgamma
and an output gamma, the parameter
outputgamma.