public function extractTextFromUrl($url, $language, $useDefaultDictionaries)
    {
        $strURI = Product::$baseProductUri . '/ocr/recognize?url=' . $url . '&language=' . $language . '&useDefaultDictionaries=' . $useDefaultDictionaries;
        $signedURI = Utils::sign($strURI);
        $responseStream = Utils::processCommand($signedURI);
        $json = json_decode($responseStream);
        return $json;
    }