Java Code Examples for com.google.zxing.Result#putMetadata()

The following examples show how to use com.google.zxing.Result#putMetadata() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: QRCodeReader.java From barterli_android with Apache License 2.0

6 votes

@Override
public 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();
    }

    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);
    }
    return result;
}

Example 2

Source File: PDF417Reader.java From weex with Apache License 2.0

6 votes

private static Result[] decode(BinaryBitmap image, Map<DecodeHintType, ?> hints, boolean multiple) 
    throws NotFoundException, FormatException, ChecksumException {
  List<Result> results = new ArrayList<>();
  PDF417DetectorResult detectorResult = Detector.detect(image, hints, multiple);
  for (ResultPoint[] points : detectorResult.getPoints()) {
    DecoderResult decoderResult = PDF417ScanningDecoder.decode(detectorResult.getBits(), points[4], points[5],
        points[6], points[7], getMinCodewordWidth(points), getMaxCodewordWidth(points));
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.PDF_417);
    result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.getECLevel());
    PDF417ResultMetadata pdf417ResultMetadata = (PDF417ResultMetadata) decoderResult.getOther();
    if (pdf417ResultMetadata != null) {
      result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
    }
    results.add(result);
  }
  return results.toArray(new Result[results.size()]);
}

Example 3

Source File: QRCodeReader.java From android-quick-response-code with Apache License 2.0

6 votes

@Override
public 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();
    }

    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);
    }
    return result;
}

Example 4

Source File: PDF417Reader.java From barcodescanner-lib-aar with MIT License

6 votes

private static Result[] decode(BinaryBitmap image, Map<DecodeHintType, ?> hints, boolean multiple) 
    throws NotFoundException, FormatException, ChecksumException {
  List<Result> results = new ArrayList<>();
  PDF417DetectorResult detectorResult = Detector.detect(image, hints, multiple);
  for (ResultPoint[] points : detectorResult.getPoints()) {
    DecoderResult decoderResult = PDF417ScanningDecoder.decode(detectorResult.getBits(), points[4], points[5],
        points[6], points[7], getMinCodewordWidth(points), getMaxCodewordWidth(points));
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.PDF_417);
    result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.getECLevel());
    PDF417ResultMetadata pdf417ResultMetadata = (PDF417ResultMetadata) decoderResult.getOther();
    if (pdf417ResultMetadata != null) {
      result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
    }
    results.add(result);
  }
  return results.toArray(new Result[results.size()]);
}

Example 5

Source File: MaxiCodeReader.java From barcodescanner-lib-aar with MIT License

6 votes

@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();
  }

  Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), NO_POINTS, BarcodeFormat.MAXICODE);

  String ecLevel = decoderResult.getECLevel();
  if (ecLevel != null) {
    result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
  }
  return result;
}

Example 6

Source File: AztecReader.java From MiBandDecompiled with Apache License 2.0

5 votes

public Result decode(BinaryBitmap binarybitmap, Map map)
{
    AztecDetectorResult aztecdetectorresult = (new Detector(binarybitmap.getBlackMatrix())).detect();
    com.google.zxing.ResultPoint aresultpoint[] = aztecdetectorresult.getPoints();
    if (map != null)
    {
        ResultPointCallback resultpointcallback = (ResultPointCallback)map.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
        if (resultpointcallback != null)
        {
            int i = aresultpoint.length;
            for (int j = 0; j < i; j++)
            {
                resultpointcallback.foundPossibleResultPoint(aresultpoint[j]);
            }

        }
    }
    DecoderResult decoderresult = (new Decoder()).decode(aztecdetectorresult);
    Result result = new Result(decoderresult.getText(), decoderresult.getRawBytes(), aresultpoint, BarcodeFormat.AZTEC);
    java.util.List list = decoderresult.getByteSegments();
    if (list != null)
    {
        result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, list);
    }
    String s = decoderresult.getECLevel();
    if (s != null)
    {
        result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, s);
    }
    return result;
}

Example 7

Source File: OneDReader.java From reacteu-app with MIT License

5 votes

@Override
public Result decode(BinaryBitmap image,
                     Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
  try {
    return doDecode(image, hints);
  } catch (NotFoundException nfe) {
    boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
    if (tryHarder && image.isRotateSupported()) {
      BinaryBitmap rotatedImage = image.rotateCounterClockwise();
      Result result = doDecode(rotatedImage, hints);
      // Record that we found it rotated 90 degrees CCW / 270 degrees CW
      Map<ResultMetadataType,?> metadata = result.getResultMetadata();
      int orientation = 270;
      if (metadata != null && metadata.containsKey(ResultMetadataType.ORIENTATION)) {
        // But if we found it reversed in doDecode(), add in that result here:
        orientation = (orientation +
            (Integer) metadata.get(ResultMetadataType.ORIENTATION)) % 360;
      }
      result.putMetadata(ResultMetadataType.ORIENTATION, orientation);
      // Update result points
      ResultPoint[] points = result.getResultPoints();
      if (points != null) {
        int height = rotatedImage.getHeight();
        for (int i = 0; i < points.length; i++) {
          points[i] = new ResultPoint(height - points[i].getY() - 1, points[i].getX());
        }
      }
      return result;
    } else {
      throw nfe;
    }
  }
}

Example 8

Source File: QRCodeMultiReader.java From barcodescanner-lib-aar with MIT License

5 votes

@Override
public Result[] decodeMultiple(BinaryBitmap image, Map<DecodeHintType,?> hints) throws NotFoundException {
  List<Result> results = new ArrayList<>();
  DetectorResult[] detectorResults = new MultiDetector(image.getBlackMatrix()).detectMulti(hints);
  for (DetectorResult detectorResult : detectorResults) {
    try {
      DecoderResult decoderResult = getDecoder().decode(detectorResult.getBits(), hints);
      ResultPoint[] 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());
      }
      results.add(result);
    } catch (ReaderException re) {
      // ignore and continue 
    }
  }
  if (results.isEmpty()) {
    return EMPTY_RESULT_ARRAY;
  } else {
    results = processStructuredAppend(results);
    return results.toArray(new Result[results.size()]);
  }
}

Example 9

Source File: OneDReader.java From ZXing-Orient with Apache License 2.0

5 votes

@Override
public Result decode(BinaryBitmap image,
                     Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
  try {
    return doDecode(image, hints);
  } catch (NotFoundException nfe) {
    boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
    if (tryHarder && image.isRotateSupported()) {
      BinaryBitmap rotatedImage = image.rotateCounterClockwise();
      Result result = doDecode(rotatedImage, hints);
      // Record that we found it rotated 90 degrees CCW / 270 degrees CW
      Map<ResultMetadataType,?> metadata = result.getResultMetadata();
      int orientation = 270;
      if (metadata != null && metadata.containsKey(ResultMetadataType.ORIENTATION)) {
        // But if we found it reversed in doDecode(), add in that result here:
        orientation = (orientation +
            (Integer) metadata.get(ResultMetadataType.ORIENTATION)) % 360;
      }
      result.putMetadata(ResultMetadataType.ORIENTATION, orientation);
      // Update result points
      ResultPoint[] points = result.getResultPoints();
      if (points != null) {
        int height = rotatedImage.getHeight();
        for (int i = 0; i < points.length; i++) {
          points[i] = new ResultPoint(height - points[i].getY() - 1, points[i].getX());
        }
      }
      return result;
    } else {
      throw nfe;
    }
  }
}

Example 10

Source File: QRCodeReader.java From ZXing-Orient with Apache License 2.0

5 votes

@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 11

Source File: QRCodeReader.java From ScreenCapture with MIT License

5 votes

@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 12

Source File: OneDReader.java From QrCodeScanner with GNU General Public License v3.0

5 votes

@Override
public Result decode(BinaryBitmap image,
                     Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
  try {
    return doDecode(image, hints);
  } catch (NotFoundException nfe) {
    boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
    if (tryHarder && image.isRotateSupported()) {
      BinaryBitmap rotatedImage = image.rotateCounterClockwise();
      Result result = doDecode(rotatedImage, hints);
      // Record that we found it rotated 90 degrees CCW / 270 degrees CW
      Map<ResultMetadataType,?> metadata = result.getResultMetadata();
      int orientation = 270;
      if (metadata != null && metadata.containsKey(ResultMetadataType.ORIENTATION)) {
        // But if we found it reversed in doDecode(), add in that result here:
        orientation = (orientation +
            (Integer) metadata.get(ResultMetadataType.ORIENTATION)) % 360;
      }
      result.putMetadata(ResultMetadataType.ORIENTATION, orientation);
      // Update result points
      ResultPoint[] points = result.getResultPoints();
      if (points != null) {
        int height = rotatedImage.getHeight();
        for (int i = 0; i < points.length; i++) {
          points[i] = new ResultPoint(height - points[i].getY() - 1, points[i].getX());
        }
      }
      return result;
    } else {
      throw nfe;
    }
  }
}

Example 13

Source File: QRCodeReader.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0

5 votes

@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 14

Source File: QRCodeReader.java From weex with Apache License 2.0

5 votes

@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 15

Source File: QRCodeMultiReader.java From Telegram-FOSS with GNU General Public License v2.0

5 votes

@Override
public Result[] decodeMultiple(BinaryBitmap image, Map<DecodeHintType,?> hints) throws NotFoundException {
  List<Result> results = new ArrayList<>();
  DetectorResult[] detectorResults = new MultiDetector(image.getBlackMatrix()).detectMulti(hints);
  for (DetectorResult detectorResult : detectorResults) {
    try {
      DecoderResult decoderResult = getDecoder().decode(detectorResult.getBits(), hints);
      ResultPoint[] 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());
      }
      results.add(result);
    } catch (ReaderException re) {
      // ignore and continue
    }
  }
  if (results.isEmpty()) {
    return EMPTY_RESULT_ARRAY;
  } else {
    results = processStructuredAppend(results);
    return results.toArray(EMPTY_RESULT_ARRAY);
  }
}

Example 16

Source File: QRCodeMultiReader.java From ScreenCapture with MIT License

5 votes

@Override
public Result[] decodeMultiple(BinaryBitmap image, Map<DecodeHintType,?> hints) throws NotFoundException {
  List<Result> results = new ArrayList<>();
  DetectorResult[] detectorResults = new MultiDetector(image.getBlackMatrix()).detectMulti(hints);
  for (DetectorResult detectorResult : detectorResults) {
    try {
      DecoderResult decoderResult = getDecoder().decode(detectorResult.getBits(), hints);
      ResultPoint[] 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());
      }
      results.add(result);
    } catch (ReaderException re) {
      // ignore and continue 
    }
  }
  if (results.isEmpty()) {
    return EMPTY_RESULT_ARRAY;
  } else {
    results = processStructuredAppend(results);
    return results.toArray(new Result[results.size()]);
  }
}

Example 17

Source File: OneDReader.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0

5 votes

@Override
public Result decode(BinaryBitmap image,
                     Map<DecodeHintType,?> hints) throws NotFoundException, FormatException {
  try {
    return doDecode(image, hints);
  } catch (NotFoundException nfe) {
    boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
    if (tryHarder && image.isRotateSupported()) {
      BinaryBitmap rotatedImage = image.rotateCounterClockwise();
      Result result = doDecode(rotatedImage, hints);
      // Record that we found it rotated 90 degrees CCW / 270 degrees CW
      Map<ResultMetadataType,?> metadata = result.getResultMetadata();
      int orientation = 270;
      if (metadata != null && metadata.containsKey(ResultMetadataType.ORIENTATION)) {
        // But if we found it reversed in doDecode(), add in that result here:
        orientation = (orientation +
            (Integer) metadata.get(ResultMetadataType.ORIENTATION)) % 360;
      }
      result.putMetadata(ResultMetadataType.ORIENTATION, orientation);
      // Update result points
      ResultPoint[] points = result.getResultPoints();
      if (points != null) {
        int height = rotatedImage.getHeight();
        for (int i = 0; i < points.length; i++) {
          points[i] = new ResultPoint(height - points[i].getY() - 1, points[i].getX());
        }
      }
      return result;
    } else {
      throw nfe;
    }
  }
}

Example 18

Source File: OneDReader.java From barcodescanner-lib-aar with MIT License

4 votes

/**
 * We're going to examine rows from the middle outward, searching alternately above and below the
 * middle, and farther out each time. rowStep is the number of rows between each successive
 * attempt above and below the middle. So we'd scan row middle, then middle - rowStep, then
 * middle + rowStep, then middle - (2 * rowStep), etc.
 * rowStep is bigger as the image is taller, but is always at least 1. We've somewhat arbitrarily
 * decided that moving up and down by about 1/16 of the image is pretty good; we try more of the
 * image if "trying harder".
 *
 * @param image The image to decode
 * @param hints Any hints that were requested
 * @return The contents of the decoded barcode
 * @throws NotFoundException Any spontaneous errors which occur
 */
private Result doDecode(BinaryBitmap image,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  int width = image.getWidth();
  int height = image.getHeight();
  BitArray row = new BitArray(width);

  int middle = height >> 1;
  boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
  int rowStep = Math.max(1, height >> (tryHarder ? 8 : 5));
  int maxLines;
  if (tryHarder) {
    maxLines = height; // Look at the whole image, not just the center
  } else {
    maxLines = 15; // 15 rows spaced 1/32 apart is roughly the middle half of the image
  }

  for (int x = 0; x < maxLines; x++) {

    // Scanning from the middle out. Determine which row we're looking at next:
    int rowStepsAboveOrBelow = (x + 1) / 2;
    boolean isAbove = (x & 0x01) == 0; // i.e. is x even?
    int rowNumber = middle + rowStep * (isAbove ? rowStepsAboveOrBelow : -rowStepsAboveOrBelow);
    if (rowNumber < 0 || rowNumber >= height) {
      // Oops, if we run off the top or bottom, stop
      break;
    }

    // Estimate black point for this row and load it:
    try {
      row = image.getBlackRow(rowNumber, row);
    } catch (NotFoundException ignored) {
      continue;
    }

    // While we have the image data in a BitArray, it's fairly cheap to reverse it in place to
    // handle decoding upside down barcodes.
    for (int attempt = 0; attempt < 2; attempt++) {
      if (attempt == 1) { // trying again?
        row.reverse(); // reverse the row and continue
        // This means we will only ever draw result points *once* in the life of this method
        // since we want to avoid drawing the wrong points after flipping the row, and,
        // don't want to clutter with noise from every single row scan -- just the scans
        // that start on the center line.
        if (hints != null && hints.containsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK)) {
          Map<DecodeHintType,Object> newHints = new EnumMap<>(DecodeHintType.class);
          newHints.putAll(hints);
          newHints.remove(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
          hints = newHints;
        }
      }
      try {
        // Look for a barcode
        Result result = decodeRow(rowNumber, row, hints);
        // We found our barcode
        if (attempt == 1) {
          // But it was upside down, so note that
          result.putMetadata(ResultMetadataType.ORIENTATION, 180);
          // And remember to flip the result points horizontally.
          ResultPoint[] points = result.getResultPoints();
          if (points != null) {
            points[0] = new ResultPoint(width - points[0].getX() - 1, points[0].getY());
            points[1] = new ResultPoint(width - points[1].getX() - 1, points[1].getY());
          }
        }
        return result;
      } catch (ReaderException re) {
        // continue -- just couldn't decode this row
      }
    }
  }

  throw NotFoundException.getNotFoundInstance();
}

Example 19

Source File: UPCEANReader.java From reacteu-app with MIT License

4 votes

/**
 * <p>Like {@link #decodeRow(int, BitArray, java.util.Map)}, but
 * allows caller to inform method about where the UPC/EAN start pattern is
 * found. This allows this to be computed once and reused across many implementations.</p>
 */
public Result decodeRow(int rowNumber,
                        BitArray row,
                        int[] startGuardRange,
                        Map<DecodeHintType,?> hints)
    throws NotFoundException, ChecksumException, FormatException {

  ResultPointCallback resultPointCallback = hints == null ? null :
      (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(new ResultPoint(
        (startGuardRange[0] + startGuardRange[1]) / 2.0f, rowNumber
    ));
  }

  StringBuilder result = decodeRowStringBuffer;
  result.setLength(0);
  int endStart = decodeMiddle(row, startGuardRange, result);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(new ResultPoint(
        endStart, rowNumber
    ));
  }

  int[] endRange = decodeEnd(row, endStart);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(new ResultPoint(
        (endRange[0] + endRange[1]) / 2.0f, rowNumber
    ));
  }


  // Make sure there is a quiet zone at least as big as the end pattern after the barcode. The
  // spec might want more whitespace, but in practice this is the maximum we can count on.
  int end = endRange[1];
  int quietEnd = end + (end - endRange[0]);
  if (quietEnd >= row.getSize() || !row.isRange(end, quietEnd, false)) {
    throw NotFoundException.getNotFoundInstance();
  }

  String resultString = result.toString();
  if (!checkChecksum(resultString)) {
    throw ChecksumException.getChecksumInstance();
  }

  float left = (float) (startGuardRange[1] + startGuardRange[0]) / 2.0f;
  float right = (float) (endRange[1] + endRange[0]) / 2.0f;
  BarcodeFormat format = getBarcodeFormat();
  Result decodeResult = new Result(resultString,
      null, // no natural byte representation for these barcodes
      new ResultPoint[]{
          new ResultPoint(left, (float) rowNumber),
          new ResultPoint(right, (float) rowNumber)},
      format);

  try {
    Result extensionResult = extensionReader.decodeRow(rowNumber, row, endRange[1]);
    decodeResult.putMetadata(ResultMetadataType.UPC_EAN_EXTENSION, extensionResult.getText());
    decodeResult.putAllMetadata(extensionResult.getResultMetadata());
    decodeResult.addResultPoints(extensionResult.getResultPoints());
  } catch (ReaderException re) {
    // continue
  }

  if (format == BarcodeFormat.EAN_13 || format == BarcodeFormat.UPC_A) {
    String countryID = eanManSupport.lookupCountryIdentifier(resultString);
    if (countryID != null) {
      decodeResult.putMetadata(ResultMetadataType.POSSIBLE_COUNTRY, countryID);
    }
  }

  return decodeResult;
}

Example 20

Source File: OneDReader.java From ScreenCapture with MIT License

4 votes

/**
 * We're going to examine rows from the middle outward, searching alternately above and below the
 * middle, and farther out each time. rowStep is the number of rows between each successive
 * attempt above and below the middle. So we'd scan row middle, then middle - rowStep, then
 * middle + rowStep, then middle - (2 * rowStep), etc.
 * rowStep is bigger as the image is taller, but is always at least 1. We've somewhat arbitrarily
 * decided that moving up and down by about 1/16 of the image is pretty good; we try more of the
 * image if "trying harder".
 *
 * @param image The image to decode
 * @param hints Any hints that were requested
 * @return The contents of the decoded barcode
 * @throws NotFoundException Any spontaneous errors which occur
 */
private Result doDecode(BinaryBitmap image,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  int width = image.getWidth();
  int height = image.getHeight();
  BitArray row = new BitArray(width);

  boolean tryHarder = hints != null && hints.containsKey(DecodeHintType.TRY_HARDER);
  int rowStep = Math.max(1, height >> (tryHarder ? 8 : 5));
  int maxLines;
  if (tryHarder) {
    maxLines = height; // Look at the whole image, not just the center
  } else {
    maxLines = 15; // 15 rows spaced 1/32 apart is roughly the middle half of the image
  }

  int middle = height / 2;
  for (int x = 0; x < maxLines; x++) {

    // Scanning from the middle out. Determine which row we're looking at next:
    int rowStepsAboveOrBelow = (x + 1) / 2;
    boolean isAbove = (x & 0x01) == 0; // i.e. is x even?
    int rowNumber = middle + rowStep * (isAbove ? rowStepsAboveOrBelow : -rowStepsAboveOrBelow);
    if (rowNumber < 0 || rowNumber >= height) {
      // Oops, if we run off the top or bottom, stop
      break;
    }

    // Estimate black point for this row and load it:
    try {
      row = image.getBlackRow(rowNumber, row);
    } catch (NotFoundException ignored) {
      continue;
    }

    // While we have the image data in a BitArray, it's fairly cheap to reverse it in place to
    // handle decoding upside down barcodes.
    for (int attempt = 0; attempt < 2; attempt++) {
      if (attempt == 1) { // trying again?
        row.reverse(); // reverse the row and continue
        // This means we will only ever draw result points *once* in the life of this method
        // since we want to avoid drawing the wrong points after flipping the row, and,
        // don't want to clutter with noise from every single row scan -- just the scans
        // that start on the center line.
        if (hints != null && hints.containsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK)) {
          Map<DecodeHintType,Object> newHints = new EnumMap<>(DecodeHintType.class);
          newHints.putAll(hints);
          newHints.remove(DecodeHintType.NEED_RESULT_POINT_CALLBACK);
          hints = newHints;
        }
      }
      try {
        // Look for a barcode
        Result result = decodeRow(rowNumber, row, hints);
        // We found our barcode
        if (attempt == 1) {
          // But it was upside down, so note that
          result.putMetadata(ResultMetadataType.ORIENTATION, 180);
          // And remember to flip the result points horizontally.
          ResultPoint[] points = result.getResultPoints();
          if (points != null) {
            points[0] = new ResultPoint(width - points[0].getX() - 1, points[0].getY());
            points[1] = new ResultPoint(width - points[1].getX() - 1, points[1].getY());
          }
        }
        return result;
      } catch (ReaderException re) {
        // continue -- just couldn't decode this row
      }
    }
  }

  throw NotFoundException.getNotFoundInstance();
}