Grafika\Imagick\Image::createFromFile PHP Méthode

    public static function createFromFile($imageFile)
    {
        $imageFile = realpath($imageFile);
        if (!file_exists($imageFile)) {
            throw new \Exception(sprintf('Could not open image file "%s"', $imageFile));
        }
        $imagick = new \Imagick(realpath($imageFile));
        $animated = false;
        if ($imagick->getImageIterations() > 0) {
            $animated = true;
        }
        return new self($imagick, $imageFile, $imagick->getImageWidth(), $imagick->getImageHeight(), $imagick->getImageFormat(), $animated);
    }

 /**
  * Open an image file and assign Image to first parameter.
  *
  * @param Image $image
  * @param string $imageFile
  *
  * @return Editor
  */
 public function open(&$image, $imageFile)
 {
     $image = Image::createFromFile($imageFile);
     return $this;
 }