Pop\Image\Imagick::setImageInfo PHP Метод

    protected function setImageInfo()
    {
        // Set image object properties.
        $this->width = $this->resource->getImageWidth();
        $this->height = $this->resource->getImageHeight();
        $this->depth = $this->resource->getImageDepth();
        $this->quality = null;
        $this->alpha = $this->resource->getImageAlphaChannel() == 1 ? true : false;
        $colorSpace = $this->resource->getImageColorspace();
        $type = $this->resource->getImageType();
        switch ($colorSpace) {
            case \Imagick::COLORSPACE_UNDEFINED:
                $this->channels = 0;
                $this->mode = '';
                break;
            case \Imagick::COLORSPACE_RGB:
                if ($type == \Imagick::IMGTYPE_PALETTE) {
                    $this->channels = 3;
                    $this->mode = 'Indexed';
                } else {
                    if ($type == \Imagick::IMGTYPE_PALETTEMATTE) {
                        $this->channels = 3;
                        $this->mode = 'Indexed';
                    } else {
                        if ($type == \Imagick::IMGTYPE_GRAYSCALE) {
                            $this->channels = 1;
                            $this->mode = 'Gray';
                        } else {
                            if ($type == \Imagick::IMGTYPE_GRAYSCALEMATTE) {
                                $this->channels = 1;
                                $this->mode = 'Gray';
                            } else {
                                $this->channels = 3;
                                $this->mode = 'RGB';
                            }
                        }
                    }
                }
                break;
            case \Imagick::COLORSPACE_GRAY:
                $this->channels = 1;
                $this->mode = $type == \Imagick::IMGTYPE_PALETTE || $type == \Imagick::IMGTYPE_PALETTEMATTE ? 'Indexed' : 'Gray';
                break;
            case \Imagick::COLORSPACE_TRANSPARENT:
                $this->channels = 1;
                $this->mode = 'Transparent';
                break;
            case \Imagick::COLORSPACE_OHTA:
                $this->channels = 3;
                $this->mode = 'OHTA';
                break;
            case \Imagick::COLORSPACE_LAB:
                $this->channels = 3;
                $this->mode = 'LAB';
                break;
            case \Imagick::COLORSPACE_XYZ:
                $this->channels = 3;
                $this->mode = 'XYZ';
                break;
            case \Imagick::COLORSPACE_YCBCR:
                $this->channels = 3;
                $this->mode = 'YCbCr';
                break;
            case \Imagick::COLORSPACE_YCC:
                $this->channels = 3;
                $this->mode = 'YCC';
                break;
            case \Imagick::COLORSPACE_YIQ:
                $this->channels = 3;
                $this->mode = 'YIQ';
                break;
            case \Imagick::COLORSPACE_YPBPR:
                $this->channels = 3;
                $this->mode = 'YPbPr';
                break;
            case \Imagick::COLORSPACE_YUV:
                $this->channels = 3;
                $this->mode = 'YUV';
                break;
            case \Imagick::COLORSPACE_CMYK:
                $this->channels = 4;
                $this->mode = 'CMYK';
                break;
            case \Imagick::COLORSPACE_SRGB:
                $this->channels = 3;
                $this->mode = 'sRGB';
                break;
            case \Imagick::COLORSPACE_HSB:
                $this->channels = 3;
                $this->mode = 'HSB';
                break;
            case \Imagick::COLORSPACE_HSL:
                $this->channels = 3;
                $this->mode = 'HSL';
                break;
            case \Imagick::COLORSPACE_HWB:
                $this->channels = 3;
                $this->mode = 'HWB';
                break;
            case \Imagick::COLORSPACE_REC601LUMA:
                $this->channels = 3;
                $this->mode = 'Rec601';
                break;
            case \Imagick::COLORSPACE_REC709LUMA:
                $this->channels = 3;
                $this->mode = 'Rec709';
                break;
            case \Imagick::COLORSPACE_LOG:
                $this->channels = 3;
                $this->mode = 'LOG';
                break;
            case \Imagick::COLORSPACE_CMY:
                $this->channels = 3;
                $this->mode = 'CMY';
                break;
        }
    }