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<?php
namespace League\Glide\Manipulators;
use Intervention\Image\Image;
/**
* @property string $gam
*/
class Gamma extends BaseManipulator
{
* Perform gamma image manipulation.
* @param Image $image The source image.
* @return Image The manipulated image.
public function run(Image $image)
$gamma = $this->getGamma();
if ($gamma) {
$image->gamma($gamma);
}
return $image;
* Resolve gamma amount.
* @return string The resolved gamma amount.
public function getGamma()
if (!preg_match('/^[0-9]\.*[0-9]*$/', $this->gam)) {
return;
if ($this->gam < 0.1 or $this->gam > 9.99) {
return (double) $this->gam;