# imagegammacorrect

(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.

### Parameters

`image`

  An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

`inputgamma`

  The input gamma

`outputgamma`

  The output gamma

### Return Values

Returns `TRUE` on success or `FALSE` on failure.