Examples with NotFoundException com.google.zxing.NotFoundException used on opensource projects

Example 26 with NotFoundException

use of com.google.zxing.NotFoundException in project wechat by dllwh.

the class QrcodeUtilHelper method decode.

/**
 * @方法描述: 解析二维码
 * @创建者: 独泪了无痕
 * @创建时间: 2016年2月26日 下午6:03:54
 * @param imgPath
 *            二维码路径
 * @return 返回解析后的内容
 */
public static String decode(String imgPath) {
    if (StringUtils.isBlank(imgPath)) {
        System.out.println("尚未找到想要解析的图片");
        return "";
    }
    BufferedImage image;
    Result result;
    try {
        image = ImageIO.read(new File(imgPath));
        LuminanceSource source = new BufferedImageLuminanceSource(image);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
        // 解码设置编码方式为：GBK
        hints.put(DecodeHintType.CHARACTER_SET, "GBK");
        result = new MultiFormatReader().decode(bitmap, hints);
        // 对图像进行解码
        String resultStr = result.getText();
        return resultStr;
    } catch (IOException ioe) {
        ioe.printStackTrace();
    } catch (NotFoundException nfe) {
        nfe.printStackTrace();
    }
    return "";
}

Example 27 with NotFoundException

use of com.google.zxing.NotFoundException in project zxing by zxing.

the class AztecReader method decode.

@Override
public Result decode(BinaryBitmap image, Map<DecodeHintType, ?> hints) throws NotFoundException, FormatException {
    NotFoundException notFoundException = null;
    FormatException formatException = null;
    Detector detector = new Detector(image.getBlackMatrix());
    ResultPoint[] points = null;
    DecoderResult decoderResult = null;
    try {
        AztecDetectorResult detectorResult = detector.detect(false);
        points = detectorResult.getPoints();
        decoderResult = new Decoder().decode(detectorResult);
    } catch (NotFoundException e) {
        notFoundException = e;
    } catch (FormatException e) {
        formatException = e;
    }
    if (decoderResult == null) {
        try {
            AztecDetectorResult detectorResult = detector.detect(true);
            points = detectorResult.getPoints();
            decoderResult = new Decoder().decode(detectorResult);
        } catch (NotFoundException | FormatException e) {
            if (notFoundException != null) {
                throw notFoundException;
            }
            if (formatException != null) {
                throw formatException;
            }
            throw e;
        }
    }
    if (hints != null) {
        ResultPointCallback rpcb = (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
        if (rpcb != null) {
            for (ResultPoint point : points) {
                rpcb.foundPossibleResultPoint(point);
            }
        }
    }
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), decoderResult.getNumBits(), points, BarcodeFormat.AZTEC, System.currentTimeMillis());
    List<byte[]> byteSegments = decoderResult.getByteSegments();
    if (byteSegments != null) {
        result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
    }
    String ecLevel = decoderResult.getECLevel();
    if (ecLevel != null) {
        result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
    }
    return result;
}

Example 28 with NotFoundException

use of com.google.zxing.NotFoundException in project zxing by zxing.

the class ByQuadrantReader method decode.

@Override
public Result decode(BinaryBitmap image, Map<DecodeHintType, ?> hints) throws NotFoundException, ChecksumException, FormatException {
    int width = image.getWidth();
    int height = image.getHeight();
    int halfWidth = width / 2;
    int halfHeight = height / 2;
    try {
        // No need to call makeAbsolute as results will be relative to original top left here
        return delegate.decode(image.crop(0, 0, halfWidth, halfHeight), hints);
    } catch (NotFoundException re) {
    // continue
    }
    try {
        Result result = delegate.decode(image.crop(halfWidth, 0, halfWidth, halfHeight), hints);
        makeAbsolute(result.getResultPoints(), halfWidth, 0);
        return result;
    } catch (NotFoundException re) {
    // continue
    }
    try {
        Result result = delegate.decode(image.crop(0, halfHeight, halfWidth, halfHeight), hints);
        makeAbsolute(result.getResultPoints(), 0, halfHeight);
        return result;
    } catch (NotFoundException re) {
    // continue
    }
    try {
        Result result = delegate.decode(image.crop(halfWidth, halfHeight, halfWidth, halfHeight), hints);
        makeAbsolute(result.getResultPoints(), halfWidth, halfHeight);
        return result;
    } catch (NotFoundException re) {
    // continue
    }
    int quarterWidth = halfWidth / 2;
    int quarterHeight = halfHeight / 2;
    BinaryBitmap center = image.crop(quarterWidth, quarterHeight, halfWidth, halfHeight);
    Result result = delegate.decode(center, hints);
    makeAbsolute(result.getResultPoints(), quarterWidth, quarterHeight);
    return result;
}

Example 29 with NotFoundException

use of com.google.zxing.NotFoundException in project zxing by zxing.

the class DecodeWorker method dumpBlackPoint.

/**
   * Writes out a single PNG which is three times the width of the input image, containing from left
   * to right: the original image, the row sampling monochrome version, and the 2D sampling
   * monochrome version.
   */
private static void dumpBlackPoint(URI uri, BufferedImage image, BinaryBitmap bitmap) throws IOException {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int stride = width * 3;
    int[] pixels = new int[stride * height];
    // The original image
    int[] argb = new int[width];
    for (int y = 0; y < height; y++) {
        image.getRGB(0, y, width, 1, argb, 0, width);
        System.arraycopy(argb, 0, pixels, y * stride, width);
    }
    // Row sampling
    BitArray row = new BitArray(width);
    for (int y = 0; y < height; y++) {
        try {
            row = bitmap.getBlackRow(y, row);
        } catch (NotFoundException nfe) {
            // If fetching the row failed, draw a red line and keep going.
            int offset = y * stride + width;
            Arrays.fill(pixels, offset, offset + width, RED);
            continue;
        }
        int offset = y * stride + width;
        for (int x = 0; x < width; x++) {
            pixels[offset + x] = row.get(x) ? BLACK : WHITE;
        }
    }
    // 2D sampling
    try {
        for (int y = 0; y < height; y++) {
            BitMatrix matrix = bitmap.getBlackMatrix();
            int offset = y * stride + width * 2;
            for (int x = 0; x < width; x++) {
                pixels[offset + x] = matrix.get(x, y) ? BLACK : WHITE;
            }
        }
    } catch (NotFoundException ignored) {
    // continue
    }
    writeResultImage(stride, height, pixels, uri, ".mono.png");
}

Example 30 with NotFoundException

use of com.google.zxing.NotFoundException in project zxing by zxing.

the class DecodeWorker method decode.

private Result[] decode(URI uri, Map<DecodeHintType, ?> hints) throws IOException {
    BufferedImage image = ImageReader.readImage(uri);
    LuminanceSource source;
    if (config.crop == null) {
        source = new BufferedImageLuminanceSource(image);
    } else {
        List<Integer> crop = config.crop;
        source = new BufferedImageLuminanceSource(image, crop.get(0), crop.get(1), crop.get(2), crop.get(3));
    }
    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
    if (config.dumpBlackPoint) {
        dumpBlackPoint(uri, image, bitmap);
    }
    MultiFormatReader multiFormatReader = new MultiFormatReader();
    Result[] results;
    try {
        if (config.multi) {
            MultipleBarcodeReader reader = new GenericMultipleBarcodeReader(multiFormatReader);
            results = reader.decodeMultiple(bitmap, hints);
        } else {
            results = new Result[] { multiFormatReader.decode(bitmap, hints) };
        }
    } catch (NotFoundException ignored) {
        System.out.println(uri + ": No barcode found");
        return null;
    }
    if (config.brief) {
        System.out.println(uri + ": Success");
    } else {
        StringWriter output = new StringWriter();
        for (Result result : results) {
            ParsedResult parsedResult = ResultParser.parseResult(result);
            output.write(uri + " (format: " + result.getBarcodeFormat() + ", type: " + parsedResult.getType() + "):\n" + "Raw result:\n" + result.getText() + "\n" + "Parsed result:\n" + parsedResult.getDisplayResult() + "\n");
            output.write("Found " + result.getResultPoints().length + " result points.\n");
            for (int pointIndex = 0; pointIndex < result.getResultPoints().length; pointIndex++) {
                ResultPoint rp = result.getResultPoints()[pointIndex];
                output.write("  Point " + pointIndex + ": (" + rp.getX() + ',' + rp.getY() + ')');
                if (pointIndex != result.getResultPoints().length - 1) {
                    output.write('\n');
                }
            }
            output.write('\n');
        }
        System.out.println(output);
    }
    return results;
}