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<?php |
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namespace Toothless\TinyImage\Extractor; |
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use Imagick; |
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/** |
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* Class ImagickDominantColorExtractor |
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*/ |
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class ImagickDominantColorExtractor implements DominantColorExtractorInterface |
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{ |
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/** |
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* Default width for image sampling |
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* |
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* @var int |
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* |
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* @see http://php.net/manual/en/imagick.resizeimage.php |
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*/ |
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const DEFAULT_SAMPLE_WIDTH = 256; |
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/** |
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* Default height for image sampling |
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* |
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* @var int |
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* |
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* @see http://php.net/manual/en/imagick.resizeimage.php |
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*/ |
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const DEFAULT_SAMPLE_HEIGHT = 256; |
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/** |
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* Default blur ratio for image sampling |
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* |
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* @var int |
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* |
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* @see http://php.net/manual/en/imagick.resizeimage.php |
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*/ |
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const DEFAULT_SAMPLE_BLUR_RATIO = 1; |
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/** |
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* @var RGBColorExtractor |
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*/ |
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private $extractor; |
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/** |
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* @var Imagick |
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*/ |
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private $imagick; |
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/** |
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* @var int |
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*/ |
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private $sampleWidth; |
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/** |
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* @var int |
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*/ |
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private $sampleHeight; |
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/** |
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* @var int |
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*/ |
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private $sampleBlurRatio; |
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/** |
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* ImagickDominantColorExtractor constructor. |
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* |
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* @param RGBColorExtractor $extractor |
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* @param Imagick $imagick Imagick instance |
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* @param int $sampleWidth Image sample width |
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* @param int $sampleHeight Image sample height |
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* @param int $sampleBlurRatio Image blur ratio |
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*/ |
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public function __construct( |
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RGBColorExtractor $extractor, |
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Imagick $imagick, |
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$sampleWidth = self::DEFAULT_SAMPLE_WIDTH, |
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$sampleHeight = self::DEFAULT_SAMPLE_HEIGHT, |
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$sampleBlurRatio = self::DEFAULT_SAMPLE_BLUR_RATIO |
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) |
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{ |
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$this->extractor = $extractor; |
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$this->imagick = $imagick; |
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$this->sampleWidth = $sampleWidth; |
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$this->sampleHeight = $sampleHeight; |
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$this->sampleBlurRatio = $sampleBlurRatio; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function extract($content) |
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{ |
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$this->imagick->readImageBlob($content); |
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$this->imagick->resizeImage( |
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$this->sampleWidth, |
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$this->sampleHeight, |
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Imagick::FILTER_GAUSSIAN, |
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$this->sampleBlurRatio |
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1 |
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); |
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$this->imagick->quantizeImage(1, Imagick::COLORSPACE_RGB, 0, false, false); |
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$this->imagick->setFormat('RGB'); |
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// Delegate color extraction |
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return $this->extractor->extract($this->imagick->getImageBlob()); |
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} |
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} |
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clement-michelet /
tiny-image
