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

Example 36 with Result

use of com.google.zxing.Result in project weex-example by KalicyZhou.

the class GenericMultipleBarcodeReader method doDecodeMultiple.

private void doDecodeMultiple(BinaryBitmap image, Map<DecodeHintType, ?> hints, List<Result> results, int xOffset, int yOffset, int currentDepth) {
    if (currentDepth > MAX_DEPTH) {
        return;
    }
    Result result;
    try {
        result = delegate.decode(image, hints);
    } catch (ReaderException ignored) {
        return;
    }
    boolean alreadyFound = false;
    for (Result existingResult : results) {
        if (existingResult.getText().equals(result.getText())) {
            alreadyFound = true;
            break;
        }
    }
    if (!alreadyFound) {
        results.add(translateResultPoints(result, xOffset, yOffset));
    }
    ResultPoint[] resultPoints = result.getResultPoints();
    if (resultPoints == null || resultPoints.length == 0) {
        return;
    }
    int width = image.getWidth();
    int height = image.getHeight();
    float minX = width;
    float minY = height;
    float maxX = 0.0f;
    float maxY = 0.0f;
    for (ResultPoint point : resultPoints) {
        if (point == null) {
            continue;
        }
        float x = point.getX();
        float y = point.getY();
        if (x < minX) {
            minX = x;
        }
        if (y < minY) {
            minY = y;
        }
        if (x > maxX) {
            maxX = x;
        }
        if (y > maxY) {
            maxY = y;
        }
    }
    // Decode left of barcode
    if (minX > MIN_DIMENSION_TO_RECUR) {
        doDecodeMultiple(image.crop(0, 0, (int) minX, height), hints, results, xOffset, yOffset, currentDepth + 1);
    }
    // Decode above barcode
    if (minY > MIN_DIMENSION_TO_RECUR) {
        doDecodeMultiple(image.crop(0, 0, width, (int) minY), hints, results, xOffset, yOffset, currentDepth + 1);
    }
    // Decode right of barcode
    if (maxX < width - MIN_DIMENSION_TO_RECUR) {
        doDecodeMultiple(image.crop((int) maxX, 0, width - (int) maxX, height), hints, results, xOffset + (int) maxX, yOffset, currentDepth + 1);
    }
    // Decode below barcode
    if (maxY < height - MIN_DIMENSION_TO_RECUR) {
        doDecodeMultiple(image.crop(0, (int) maxY, width, height - (int) maxY), hints, results, xOffset, yOffset + (int) maxY, currentDepth + 1);
    }
}

Example 37 with Result

use of com.google.zxing.Result in project weex-example by KalicyZhou.

the class MaxiCodeReader method decode.

@Override
public Result decode(BinaryBitmap image, Map<DecodeHintType, ?> hints) throws NotFoundException, ChecksumException, FormatException {
    DecoderResult decoderResult;
    if (hints != null && hints.containsKey(DecodeHintType.PURE_BARCODE)) {
        BitMatrix bits = extractPureBits(image.getBlackMatrix());
        decoderResult = decoder.decode(bits, hints);
    } else {
        throw NotFoundException.getNotFoundInstance();
    }
    ResultPoint[] points = NO_POINTS;
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.MAXICODE);
    String ecLevel = decoderResult.getECLevel();
    if (ecLevel != null) {
        result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
    }
    return result;
}

Example 38 with Result

use of com.google.zxing.Result in project weex-example by KalicyZhou.

the class DecodeHandler method decode.

/**
   * Decode the data within the viewfinder rectangle, and time how long it took. For efficiency,
   * reuse the same reader objects from one decode to the next.
   *
   * @param data   The YUV preview frame.
   * @param width  The width of the preview frame.
   * @param height The height of the preview frame.
   */
private void decode(byte[] data, int width, int height) {
    long start = System.currentTimeMillis();
    Result rawResult = null;
    //    PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);
    byte[] rotatedData = new byte[data.length];
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) rotatedData[x * height + height - y - 1] = data[x + y * width];
    }
    int tmp = width;
    width = height;
    height = tmp;
    PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(rotatedData, width, height);
    if (source != null) {
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        try {
            rawResult = multiFormatReader.decodeWithState(bitmap);
        } catch (ReaderException re) {
        // continue
        } finally {
            multiFormatReader.reset();
        }
    }
    Handler handler = activity.getHandler();
    if (rawResult != null) {
        // Don't log the barcode contents for security.
        long end = System.currentTimeMillis();
        Log.d(TAG, "Found barcode in " + (end - start) + " ms");
        if (handler != null) {
            Message message = Message.obtain(handler, R.id.decode_succeeded, rawResult);
            Bundle bundle = new Bundle();
            bundleThumbnail(source, bundle);
            message.setData(bundle);
            message.sendToTarget();
        }
    } else {
        if (handler != null) {
            Message message = Message.obtain(handler, R.id.decode_failed);
            message.sendToTarget();
        }
    }
}

Example 39 with Result

use of com.google.zxing.Result in project weex-example by KalicyZhou.

the class QRCodeReader method decode.

@Override
public final Result decode(BinaryBitmap image, Map<DecodeHintType, ?> hints) throws NotFoundException, ChecksumException, FormatException {
    DecoderResult decoderResult;
    ResultPoint[] points;
    if (hints != null && hints.containsKey(DecodeHintType.PURE_BARCODE)) {
        BitMatrix bits = extractPureBits(image.getBlackMatrix());
        decoderResult = decoder.decode(bits, hints);
        points = NO_POINTS;
    } else {
        DetectorResult detectorResult = new Detector(image.getBlackMatrix()).detect(hints);
        decoderResult = decoder.decode(detectorResult.getBits(), hints);
        points = detectorResult.getPoints();
    }
    // If the code was mirrored: swap the bottom-left and the top-right points.
    if (decoderResult.getOther() instanceof QRCodeDecoderMetaData) {
        ((QRCodeDecoderMetaData) decoderResult.getOther()).applyMirroredCorrection(points);
    }
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.QR_CODE);
    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);
    }
    if (decoderResult.hasStructuredAppend()) {
        result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE, decoderResult.getStructuredAppendSequenceNumber());
        result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_PARITY, decoderResult.getStructuredAppendParity());
    }
    return result;
}

Example 40 with Result

use of com.google.zxing.Result in project weex-example by KalicyZhou.

the class MultiFormatUPCEANReader method decodeRow.

@Override
public Result decodeRow(int rowNumber, BitArray row, Map<DecodeHintType, ?> hints) throws NotFoundException {
    // Compute this location once and reuse it on multiple implementations
    int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
    for (UPCEANReader reader : readers) {
        Result result;
        try {
            result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
        } catch (ReaderException ignored) {
            continue;
        }
        // Special case: a 12-digit code encoded in UPC-A is identical to a "0"
        // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,
        // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".
        // Individually these are correct and their readers will both read such a code
        // and correctly call it EAN-13, or UPC-A, respectively.
        //
        // In this case, if we've been looking for both types, we'd like to call it
        // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read
        // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A
        // result if appropriate.
        //
        // But, don't return UPC-A if UPC-A was not a requested format!
        boolean ean13MayBeUPCA = result.getBarcodeFormat() == BarcodeFormat.EAN_13 && result.getText().charAt(0) == '0';
        @SuppressWarnings("unchecked") Collection<BarcodeFormat> possibleFormats = hints == null ? null : (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
        boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);
        if (ean13MayBeUPCA && canReturnUPCA) {
            // Transfer the metdata across
            Result resultUPCA = new Result(result.getText().substring(1), result.getRawBytes(), result.getResultPoints(), BarcodeFormat.UPC_A);
            resultUPCA.putAllMetadata(result.getResultMetadata());
            return resultUPCA;
        }
        return result;
    }
    throw NotFoundException.getNotFoundInstance();
}