Gamma

Performs a gamma correction on an image.

Parameters
amount

The amount of gamma correction to apply. >= 1.0

Examples
use Grafika\Grafika; // Import package

//...

$filter = Grafika::createFilter('Gamma', 2.0);
$editor->apply( $image, $filter ); // Apply it to an image 

Test image:

lena

Result:

result