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<?php
namespace League\Glide\Manipulators;
use Intervention\Image\Image;
/**
* @property string $con
*/
class Contrast extends BaseManipulator
{
* Perform contrast image manipulation.
* @param Image $image The source image.
* @return Image The manipulated image.
public function run(Image $image)
$contrast = $this->getContrast();
if ($contrast !== null) {
$image->contrast($contrast);
}
return $image;
* Resolve contrast amount.
* @return string The resolved contrast amount.
public function getContrast()
if (!preg_match('/^-*[0-9]+$/', $this->con)) {
return;
if ($this->con < -100 or $this->con > 100) {
return (int) $this->con;