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<?php
/**
* Class IMagickLuminanceSource
*
* @created 17.01.2021
* @author ZXing Authors
* @author Smiley <[email protected]>
* @copyright 2021 Smiley
* @license Apache-2.0
* @noinspection PhpComposerExtensionStubsInspection
*/
namespace chillerlan\QRCode\Decoder;
use Imagick;
use function count;
* This class is used to help decode images from files which arrive as Imagick Resource
* It does not support rotation.
final class IMagickLuminanceSource extends LuminanceSource{
private Imagick $imagick;
* IMagickLuminanceSource constructor.
* @param \Imagick $imagick
* @throws \InvalidArgumentException
public function __construct(Imagick $imagick){
parent::__construct($imagick->getImageWidth(), $imagick->getImageHeight());
$this->imagick = $imagick;
$this->setLuminancePixels();
}
private function setLuminancePixels():void{
$this->imagick->setImageColorspace(Imagick::COLORSPACE_GRAY);
$pixels = $this->imagick->exportImagePixels(1, 1, $this->width, $this->height, 'RGB', Imagick::PIXEL_CHAR);
$countPixels = count($pixels);
for($i = 0; $i < $countPixels; $i += 3){
$this->setLuminancePixel($pixels[$i] & 0xff, $pixels[$i + 1] & 0xff, $pixels[$i + 2] & 0xff);
chillerlan /
php-qrcode
