imagegammacorrect

(PHP 3 >= 3.0.13, PHP 4, PHP 5)

imagegammacorrect -- Apply a gamma correction to a GD image

Description

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

Applies gamma correction to the given gd image given an input and an output gamma.

image: An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
inputgamma: The input gamma
outputgamma: The output gamma

Returns TRUE on success or FALSE on failure.