Examples with BufferedImageLuminanceSource com.google.zxing.client.j2se.BufferedImageLuminanceSource used on opensource projects

Example 1 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project zxing by zxing.

the class DecodeServlet method processImage.

private static void processImage(BufferedImage image, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));
    Collection<Result> results = new ArrayList<>(1);
    try {
        Reader reader = new MultiFormatReader();
        ReaderException savedException = null;
        try {
            // Look for multiple barcodes
            MultipleBarcodeReader multiReader = new GenericMultipleBarcodeReader(reader);
            Result[] theResults = multiReader.decodeMultiple(bitmap, HINTS);
            if (theResults != null) {
                results.addAll(Arrays.asList(theResults));
            }
        } catch (ReaderException re) {
            savedException = re;
        }
        if (results.isEmpty()) {
            try {
                // Look for pure barcode
                Result theResult = reader.decode(bitmap, HINTS_PURE);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                // Look for normal barcode in photo
                Result theResult = reader.decode(bitmap, HINTS);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                // Try again with other binarizer
                BinaryBitmap hybridBitmap = new BinaryBitmap(new HybridBinarizer(source));
                Result theResult = reader.decode(hybridBitmap, HINTS);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                throw savedException == null ? NotFoundException.getNotFoundInstance() : savedException;
            } catch (FormatException | ChecksumException e) {
                log.info(e.toString());
                errorResponse(request, response, "format");
            } catch (ReaderException e) {
                // Including NotFoundException
                log.info(e.toString());
                errorResponse(request, response, "notfound");
            }
            return;
        }
    } catch (RuntimeException re) {
        // Call out unexpected errors in the log clearly
        log.log(Level.WARNING, "Unexpected exception from library", re);
        throw new ServletException(re);
    }
    String fullParameter = request.getParameter("full");
    boolean minimalOutput = fullParameter != null && !Boolean.parseBoolean(fullParameter);
    if (minimalOutput) {
        response.setContentType(MediaType.PLAIN_TEXT_UTF_8.toString());
        response.setCharacterEncoding(StandardCharsets.UTF_8.name());
        try (Writer out = new OutputStreamWriter(response.getOutputStream(), StandardCharsets.UTF_8)) {
            for (Result result : results) {
                out.write(result.getText());
                out.write('\n');
            }
        }
    } else {
        request.setAttribute("results", results);
        request.getRequestDispatcher("decoderesult.jspx").forward(request, response);
    }
}

Example 2 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project pancm_project by xuwujing.

the class QrCodeCreateUtil method readQrCode.

/**
 * 读二维码并输出携带的信息
 */
public static void readQrCode(InputStream inputStream) throws IOException {
    // 从输入流中获取字符串信息
    BufferedImage image = ImageIO.read(inputStream);
    // 将图像转换为二进制位图源
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    QRCodeReader reader = new QRCodeReader();
    Result result = null;
    try {
        result = reader.decode(bitmap);
    } catch (ReaderException e) {
        e.printStackTrace();
    }
    System.out.println(result.getText());
}

Example 3 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project elastic-core-maven by OrdinaryDude.

the class DecodeQRCode method processRequest.

@Override
protected JSONStreamAware processRequest(HttpServletRequest request) throws NxtException {
    String qrCodeBase64 = Convert.nullToEmpty(request.getParameter("qrCodeBase64"));
    JSONObject response = new JSONObject();
    try {
        BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(ImageIO.read(new ByteArrayInputStream(Base64.getDecoder().decode(qrCodeBase64))))));
        Map hints = new HashMap();
        hints.put(DecodeHintType.POSSIBLE_FORMATS, EnumSet.of(BarcodeFormat.QR_CODE));
        hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
        Result qrCodeData = new MultiFormatReader().decode(binaryBitmap, hints);
        response.put("qrCodeData", qrCodeData.getText());
    } catch (IOException ex) {
        String errorMessage = "Error reading base64 byte stream";
        Logger.logErrorMessage(errorMessage, ex);
        JSONData.putException(response, ex, errorMessage);
    } catch (NullPointerException ex) {
        String errorMessage = "Invalid base64 image";
        Logger.logErrorMessage(errorMessage, ex);
        JSONData.putException(response, ex, errorMessage);
    } catch (NotFoundException ex) {
        response.put("qrCodeData", "");
    }
    return response;
}

Example 4 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project portal by ixinportal.

the class parseQRCodeTool method parseQRCode.

public static String[] parseQRCode(InputStream imageInputStream) throws Exception {
    BufferedImage image = ImageIO.read(imageInputStream);
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    Binarizer binarizer = new HybridBinarizer(source);
    BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
    Map<DecodeHintType, Object> hints = new HashMap<>();
    hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
    MultiFormatReader formatReader = new MultiFormatReader();
    Result result = formatReader.decode(binaryBitmap, hints);
    String[] eInvoiceInfo = getEinvoiceInfo(result.getText());
    return eInvoiceInfo;
}

Example 5 with BufferedImageLuminanceSource

use of com.google.zxing.client.j2se.BufferedImageLuminanceSource in project protools by SeanDragon.

the class MatrixToImageWriterEx method decode.

/**
 * 解码
 *
 * @param filePath
 *
 * @return
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static String decode(String filePath) throws IOException, NotFoundException {
    BufferedImage image;
    image = ImageIO.read(new File(filePath));
    if (image == null) {
        return "Could not decode image";
    }
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    Result result;
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.CHARACTER_SET, StrConst.DEFAULT_CHARSET_NAME);
    result = new MultiFormatReader().decode(bitmap, hints);
    return result.getText();
}