Decode an image based either on a full path or base64 content

DecodeQRCode.java

private static String decodeQRCode(Object qrCodeImage) {
    Result result = null;

    try {
        BufferedImage bufferedImage;

        // if not (probably it is a URL
        if (((String) qrCodeImage).contains("http")) {
            bufferedImage = ImageIO.read((new URL((String)qrCodeImage)));

            // if is a Base64 String
        } else {
            byte[] decoded = Base64.decodeBase64((String)qrCodeImage);
            bufferedImage = ImageIO.read(new ByteArrayInputStream(decoded));
        }

        LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

        result = new MultiFormatReader().decode(bitmap);
    } catch (NotFoundException | IOException e) {
        log.error("Error reading the QR Code", e);
    }
    return result.getText();
}

The full code example can be found at https://github.com/eliasnogueira/selenium-read-qrcode