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# ImageGammaCorrect

(3.0.13 - 3.0.18 only, 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`.

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