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<?php /* * This file is part of the Imagine package. * * (c) Bulat Shakirzyanov <mallluhuct@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Imagine\Filter\Advanced; use Imagine\Filter\FilterInterface; use Imagine\Image\ImageInterface; use Imagine\Image\Point; /** * The Grayscale filter calculates the gray-value based on RGB. */ class Grayscale extends OnPixelBased implements FilterInterface { public function __construct() { parent::__construct(function (ImageInterface $image, Point $point) { $color = $image->getColorAt($point); $image->draw()->dot($point, $color->grayscale()); }); } }