imagegammacorrect

Manual de PHP
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(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.