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<?php /** * @package Foundry * @copyright Copyright (C) Stack Ideas Sdn Bhd. All rights reserved. * @license GNU/GPL, see LICENSE.php * Foundry is free software. This version may have been modified pursuant * to the GNU General Public License, and as distributed it includes or * is derivative of works licensed under the GNU General Public License or * other free or open source software licenses. * See COPYRIGHT.php for copyright notices and details. */ namespace Intervention\Image\Imagick\Commands; defined('_JEXEC') or die('Unauthorized Access'); use Intervention\Image\Commands\AbstractCommand; class ColorizeCommand extends AbstractCommand { /** * Changes balance of different RGB color channels * * @param \Intervention\Image\Image $image * @return boolean */ public function execute($image) { $red = $this->argument(0)->between(-100, 100)->required()->value(); $green = $this->argument(1)->between(-100, 100)->required()->value(); $blue = $this->argument(2)->between(-100, 100)->required()->value(); // normalize colorize levels $red = $this->normalizeLevel($red); $green = $this->normalizeLevel($green); $blue = $this->normalizeLevel($blue); $qrange = $image->getCore()->getQuantumRange(); // apply $image->getCore()->levelImage(0, $red, $qrange['quantumRangeLong'], \Imagick::CHANNEL_RED); $image->getCore()->levelImage(0, $green, $qrange['quantumRangeLong'], \Imagick::CHANNEL_GREEN); $image->getCore()->levelImage(0, $blue, $qrange['quantumRangeLong'], \Imagick::CHANNEL_BLUE); return true; } private function normalizeLevel($level) { if ($level > 0) { return $level/5; } else { return ($level+100)/100; } } }
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