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<?php |
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/** |
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* Class IMagickLuminanceSource |
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* |
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* @created 17.01.2021 |
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* @author Ashot Khanamiryan |
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* @author Smiley <[email protected]> |
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* @copyright 2021 Smiley |
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* @license MIT |
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* |
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* @noinspection PhpComposerExtensionStubsInspection |
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*/ |
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namespace chillerlan\QRCode\Decoder; |
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use chillerlan\Settings\SettingsContainerInterface; |
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use Imagick; |
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use function count; |
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/** |
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* This class is used to help decode images from files which arrive as Imagick Resource |
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* It does not support rotation. |
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*/ |
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class IMagickLuminanceSource extends LuminanceSourceAbstract{ |
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protected Imagick $imagick; |
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/** |
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* IMagickLuminanceSource constructor. |
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*/ |
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public function __construct(Imagick $imagick, SettingsContainerInterface $options = null){ |
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parent::__construct($imagick->getImageWidth(), $imagick->getImageHeight(), $options); |
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$this->imagick = $imagick; |
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$this->setLuminancePixels(); |
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} |
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/** |
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* |
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*/ |
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protected function setLuminancePixels():void{ |
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if($this->options->readerGrayscale){ |
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$this->imagick->setImageColorspace(Imagick::COLORSPACE_GRAY); |
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} |
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if($this->options->readerIncreaseContrast){ |
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for($i = 0; $i < 10; $i++){ |
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$this->imagick->contrastImage(false); // misleading docs |
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} |
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} |
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$pixels = $this->imagick->exportImagePixels(1, 1, $this->width, $this->height, 'RGB', Imagick::PIXEL_CHAR); |
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$count = count($pixels); |
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for($i = 0; $i < $count; $i += 3){ |
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$this->setLuminancePixel(($pixels[$i] & 0xff), ($pixels[($i + 1)] & 0xff), ($pixels[($i + 2)] & 0xff)); |
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} |
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} |
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/** @inheritDoc */ |
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public static function fromFile(string $path, SettingsContainerInterface $options = null):self{ |
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return new self(new Imagick(self::checkFile($path)), $options); |
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} |
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/** @inheritDoc */ |
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public static function fromBlob(string $blob, SettingsContainerInterface $options = null):self{ |
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$im = new Imagick; |
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$im->readImageBlob($blob); |
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return new self($im, $options); |
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} |
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} |
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chillerlan /
php-qrcode
