imagegammacorrect

imagegammacorrect

Apply a gamma correction to a GD image

true **imagegammacorrect** GdImage $image float $input_gamma float $output_gamma

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

input_gammaThe input gamma.

output_gammaThe output gamma.

return.true.always

Voorbeeld: usage

<?php
// Create image instance
$im = imagecreatefromgif('php.gif');

// Correct gamma, out = 1.537
imagegammacorrect($im, 1.0, 1.537);

// Save
imagegif($im, './php_gamma_corrected.gif');
?>