Pop\Image\Imagick::blur PHP Метод

    public function blur($radius = 0, $sigma = 0, $angle = 0, $type = Imagick::BLUR)
    {
        switch ($type) {
            case self::BLUR:
                $this->resource->blurImage($radius, $sigma);
                break;
            case self::GAUSSIAN_BLUR:
                $this->resource->gaussianBlurImage($radius, $sigma);
                break;
            case self::MOTION_BLUR:
                $this->resource->motionBlurImage($radius, $sigma, $angle);
                break;
            case self::RADIAL_BLUR:
                $this->resource->radialBlurImage($angle);
                break;
        }
        return $this;
    }