Pop\Image\Gd::createImage PHP Method

    protected function createImage($new, $img = null, $q = null)
    {
        if (is_string($new)) {
            $new = imagecreatefromstring($new);
        }
        switch ($this->mime) {
            case 'image/gif':
                imagegif($new, $img);
                break;
            case 'image/png':
                if (null !== $q) {
                    imagepng($new, $img, $q);
                } else {
                    imagepng($new, $img);
                }
                break;
            case 'image/jpeg':
                imagejpeg($new, $img, $q);
                break;
        }
    }