JBZoo\Image\Image::_renderBinary PHP Method

    protected function _renderBinary($format, $quality)
    {
        if (!$this->_image) {
            throw new Exception('Image resource not defined');
        }
        ob_start();
        $mimeType = $this->_renderImageByFormat($format, null, $quality);
        $imageData = ob_get_contents();
        ob_end_clean();
        return array($mimeType, $imageData);
    }