imagegammacorrect()

imagegammacorrect - Apply a gamma correction to a GD image

Syntax

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

Arguments

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

Description

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

Version

PHP 4, 5

Return value

Returns TRUE on success or FALSE on failure.