(PHP 3>= 3.0.13, PHP 4 >= 4.0.0)
ImageGammaCorrect --
Apply a gamma correction to a GD image
Description
int
imagegammacorrect ( int im, float inputgamma, float outputgamma)
The ImageGammaCorrect() function applies gamma
correction to a gd image stream (im) given
an input gamma, the parameter inputgamma
and an output gamma, the parameter
outputgamma.