Exemplo n.º 1
0
 @Override
 public void actionPerformed(ActionEvent e) {
   if (e.getActionCommand().equals(CANCELAR)) {
     PPal.get().seleccionarPrimerFactura();
   } else if (e.getActionCommand().equals(CONFIRMAR)) {
     PPal.get().agregarFactura(getNewFactura());
   } else if (e.getActionCommand().equals(CARGAR)) {
     JFileChooser chooser = new JFileChooser();
     FileNameExtensionFilter filter =
         new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");
     chooser.setFileFilter(filter);
     int returnVal = chooser.showOpenDialog(this);
     if (returnVal == JFileChooser.APPROVE_OPTION) {
       try {
         txtBono.setText(ManagerQR.readQRCode(chooser.getSelectedFile()));
       } catch (FileNotFoundException e1) {
         // TODO Auto-generated catch block
         e1.printStackTrace();
       } catch (NotFoundException e1) {
         // TODO Auto-generated catch block
         e1.printStackTrace();
       } catch (IOException e1) {
         // TODO Auto-generated catch block
         e1.printStackTrace();
       }
     }
   }
 }
Exemplo n.º 2
0
  private static BitMatrix extractPureBits(BitMatrix bitmatrix) throws NotFoundException {
    int ai[] = bitmatrix.getTopLeftOnBit();
    int ai1[] = bitmatrix.getBottomRightOnBit();
    if (ai == null || ai1 == null) {
      throw NotFoundException.getNotFoundInstance();
    }
    int l = moduleSize(ai, bitmatrix);
    int i1 = ai[1];
    int i = ai1[1];
    int j1 = ai[0];
    int k1 = ((ai1[0] - j1) + 1) / l;
    int l1 = ((i - i1) + 1) / l;
    if (k1 <= 0 || l1 <= 0) {
      throw NotFoundException.getNotFoundInstance();
    }
    int i2 = l >> 1;
    BitMatrix bitmatrix1 = new BitMatrix(k1, l1);
    for (int j = 0; j < l1; j++) {
      for (int k = 0; k < k1; k++) {
        if (bitmatrix.get(k * l + (j1 + i2), i1 + i2 + j * l)) {
          bitmatrix1.set(k, j);
        }
      }
    }

    return bitmatrix1;
  }
Exemplo n.º 3
0
  // YUVオブジェクトのバイナリデータを読み込み、マーカーを検知
  public void readYUV(
      final byte[] data,
      int dataWidth,
      int dataHeight,
      int left,
      int top,
      int width,
      int height,
      boolean reserversion) {
    final LuminanceSource source =
        new PlanarYUVLuminanceSource(
            data, dataWidth, dataHeight, left, top, width, height, reserversion);

    final BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
    // final Reader reader = new MultiFormatReader();
    final Reader reader = new QRCodeReader();
    try {
      // 結果をゲット
      mQRResult.setResultData(reader.decode(binaryBitmap));
      mFoundFlag = true;
    }
    // 見つからなかった!
    catch (NotFoundException ex) {
      ex.printStackTrace();
      mFoundFlag = false;
    } catch (ChecksumException ex) {
      ex.printStackTrace();
      mFoundFlag = false;
    } catch (FormatException ex) {
      ex.printStackTrace();
      mFoundFlag = false;
    }
  }
Exemplo n.º 4
0
  public final BitMatrix sampleGrid(
      BitMatrix bitmatrix, int i, int j, PerspectiveTransform perspectivetransform)
      throws NotFoundException {
    if (i <= 0 || j <= 0) {
      throw NotFoundException.getNotFoundInstance();
    }
    BitMatrix bitmatrix1 = new BitMatrix(i, j);
    float af[] = new float[i << 1];
    for (i = 0; i < j; i++) {
      int i1 = af.length;
      float f = i;
      for (int k = 0; k < i1; k += 2) {
        af[k] = (float) (k >> 1) + 0.5F;
        af[k + 1] = f + 0.5F;
      }

      perspectivetransform.transformPoints(af);
      checkAndNudgePoints(bitmatrix, af);
      int l = 0;
      while (l < i1) {
        try {
          if (bitmatrix.get((int) af[l], (int) af[l + 1])) {
            bitmatrix1.set(l >> 1, i);
          }
        }
        // Misplaced declaration of an exception variable
        catch (BitMatrix bitmatrix) {
          throw NotFoundException.getNotFoundInstance();
        }
        l += 2;
      }
    }

    return bitmatrix1;
  }
Exemplo n.º 5
0
  @Override
  public Result decodeRow(int rowNumber, BitArray row, Map<DecodeHintType, ?> hints)
      throws NotFoundException, ChecksumException, FormatException {

    int[] start = findAsteriskPattern(row);
    // Read off white space
    int nextStart = row.getNextSet(start[1]);
    int end = row.getSize();

    StringBuilder result = new StringBuilder(20);
    int[] counters = new int[6];
    char decodedChar;
    int lastStart;
    do {
      recordPattern(row, nextStart, counters);
      int pattern = toPattern(counters);
      if (pattern < 0) {
        throw NotFoundException.getNotFoundInstance();
      }
      decodedChar = patternToChar(pattern);
      result.append(decodedChar);
      lastStart = nextStart;
      for (int counter : counters) {
        nextStart += counter;
      }
      // Read off white space
      nextStart = row.getNextSet(nextStart);
    } while (decodedChar != '*');
    result.deleteCharAt(result.length() - 1); // remove asterisk

    // Should be at least one more black module
    if (nextStart == end || !row.get(nextStart)) {
      throw NotFoundException.getNotFoundInstance();
    }

    if (result.length() < 2) {
      // false positive -- need at least 2 checksum digits
      throw NotFoundException.getNotFoundInstance();
    }

    checkChecksums(result);
    // Remove checksum digits
    result.setLength(result.length() - 2);

    String resultString = decodeExtended(result);

    float left = (float) (start[1] + start[0]) / 2.0f;
    float right = (float) (nextStart + lastStart) / 2.0f;
    return new Result(
        resultString,
        null,
        new ResultPoint[] {
          new ResultPoint(left, (float) rowNumber), new ResultPoint(right, (float) rowNumber)
        },
        BarcodeFormat.CODE_93);
  }
Exemplo n.º 6
0
 public Result getRawResult(Bitmap bitmap) {
   if (bitmap == null) {
     return null;
   }
   try {
     return multiFormatReader.decodeWithState(
         new BinaryBitmap(new HybridBinarizer(new BitmapLuminanceSource(bitmap))));
   } catch (NotFoundException e) {
     e.printStackTrace();
   }
   return null;
 }
  /**
   * This method detects a code in a "pure" image -- that is, pure monochrome image which contains
   * only an unrotated, unskewed, image of a code, with some white border around it. This is a
   * specialized method that works exceptionally fast in this special case.
   *
   * @see com.google.zxing.pdf417.PDF417Reader#extractPureBits(BitMatrix)
   * @see com.google.zxing.datamatrix.DataMatrixReader#extractPureBits(BitMatrix)
   */
  private static BitMatrix extractPureBits(BitMatrix image) throws NotFoundException {

    int[] leftTopBlack = image.getTopLeftOnBit();
    int[] rightBottomBlack = image.getBottomRightOnBit();
    if (leftTopBlack == null || rightBottomBlack == null) {
      throw NotFoundException.getNotFoundInstance();
    }

    int moduleSize = moduleSize(leftTopBlack, image);

    int top = leftTopBlack[1];
    int bottom = rightBottomBlack[1];
    int left = leftTopBlack[0];
    int right = rightBottomBlack[0];

    if (bottom - top != right - left) {
      // Special case, where bottom-right module wasn't black so we found
      // something else in
      // the last row
      // Assume it's a square, so use height as the width
      right = left + (bottom - top);
    }

    int matrixWidth = (right - left + 1) / moduleSize;
    int matrixHeight = (bottom - top + 1) / moduleSize;
    if (matrixWidth <= 0 || matrixHeight <= 0) {
      throw NotFoundException.getNotFoundInstance();
    }
    if (matrixHeight != matrixWidth) {
      // Only possibly decode square regions
      throw NotFoundException.getNotFoundInstance();
    }

    // Push in the "border" by half the module width so that we start
    // sampling in the middle of the module. Just in case the image is a
    // little off, this will help recover.
    int nudge = moduleSize >> 1;
    top += nudge;
    left += nudge;

    // Now just read off the bits
    BitMatrix bits = new BitMatrix(matrixWidth, matrixHeight);
    for (int y = 0; y < matrixHeight; y++) {
      int iOffset = top + y * moduleSize;
      for (int x = 0; x < matrixWidth; x++) {
        if (image.get(left + x * moduleSize, iOffset)) {
          bits.set(x, y);
        }
      }
    }
    return bits;
  }
 protected final AlignmentPattern a(float paramFloat1, int paramInt1, int paramInt2, float paramFloat2)
 {
   int i = (int)(paramFloat2 * paramFloat1);
   int j = Math.max(0, paramInt1 - i);
   int k = Math.min(-1 + this.a.c(), paramInt1 + i);
   if (k - j < paramFloat1 * 3.0F)
     throw NotFoundException.a();
   int m = Math.max(0, paramInt2 - i);
   int n = Math.min(-1 + this.a.d(), i + paramInt2);
   if (n - m < paramFloat1 * 3.0F)
     throw NotFoundException.a();
   return new AlignmentPatternFinder(this.a, j, m, k - j, n - m, paramFloat1, this.b).a();
 }
Exemplo n.º 9
0
 private static int moduleSize(int ai[], BitMatrix bitmatrix) throws NotFoundException {
   int j = bitmatrix.getWidth();
   int i = ai[0];
   for (int k = ai[1]; i < j && bitmatrix.get(i, k); i++) {}
   if (i == j) {
     throw NotFoundException.getNotFoundInstance();
   }
   i -= ai[0];
   if (i == 0) {
     throw NotFoundException.getNotFoundInstance();
   } else {
     return i;
   }
 }
Exemplo n.º 10
0
  private static int[] findAsteriskPattern(BitArray row) throws NotFoundException {
    int width = row.getSize();
    int rowOffset = row.getNextSet(0);

    int counterPosition = 0;
    int[] counters = new int[6];
    int patternStart = rowOffset;
    boolean isWhite = false;
    int patternLength = counters.length;

    for (int i = rowOffset; i < width; i++) {
      if (row.get(i) ^ isWhite) {
        counters[counterPosition]++;
      } else {
        if (counterPosition == patternLength - 1) {
          if (toPattern(counters) == ASTERISK_ENCODING) {
            return new int[] {patternStart, i};
          }
          patternStart += counters[0] + counters[1];
          System.arraycopy(counters, 2, counters, 0, patternLength - 2);
          counters[patternLength - 2] = 0;
          counters[patternLength - 1] = 0;
          counterPosition--;
        } else {
          counterPosition++;
        }
        counters[counterPosition] = 1;
        isWhite = !isWhite;
      }
    }
    throw NotFoundException.getNotFoundInstance();
  }
Exemplo n.º 11
0
  /**
   * @param row row of black/white values to search
   * @param rowOffset position to start search
   * @param pattern pattern of counts of number of black and white pixels that are being searched
   *     for as a pattern
   * @return start/end horizontal offset of guard pattern, as an array of two ints
   * @throws NotFoundException if pattern is not found
   */
  private static int[] findGuardPattern(BitArray row, int rowOffset, int[] pattern)
      throws NotFoundException {

    // TODO: This is very similar to implementation in UPCEANReader.
    // Consider if they can be
    // merged to a single method.
    int patternLength = pattern.length;
    int[] counters = new int[patternLength];
    int width = row.getSize();
    boolean isWhite = false;

    int counterPosition = 0;
    int patternStart = rowOffset;
    for (int x = rowOffset; x < width; x++) {
      if (row.get(x) ^ isWhite) {
        counters[counterPosition]++;
      } else {
        if (counterPosition == patternLength - 1) {
          if (patternMatchVariance(counters, pattern, MAX_INDIVIDUAL_VARIANCE) < MAX_AVG_VARIANCE) {
            return new int[] {patternStart, x};
          }
          patternStart += counters[0] + counters[1];
          System.arraycopy(counters, 2, counters, 0, patternLength - 2);
          counters[patternLength - 2] = 0;
          counters[patternLength - 1] = 0;
          counterPosition--;
        } else {
          counterPosition++;
        }
        counters[counterPosition] = 1;
        isWhite = !isWhite;
      }
    }
    throw NotFoundException.getNotFoundInstance();
  }
Exemplo n.º 12
0
  private static int moduleSize(int[] leftTopBlack, BitMatrix image) throws NotFoundException {
    int width = image.getWidth();
    int x = leftTopBlack[0];
    int y = leftTopBlack[1];
    while (x < width && image.get(x, y)) {
      x++;
    }
    if (x == width) {
      throw NotFoundException.getNotFoundInstance();
    }

    int moduleSize = x - leftTopBlack[0];
    if (moduleSize == 0) {
      throw NotFoundException.getNotFoundInstance();
    }
    return moduleSize;
  }
Exemplo n.º 13
0
 private static char patternToChar(int pattern) throws NotFoundException {
   for (int i = 0; i < CHARACTER_ENCODINGS.length; i++) {
     if (CHARACTER_ENCODINGS[i] == pattern) {
       return ALPHABET[i];
     }
   }
   throw NotFoundException.getNotFoundInstance();
 }
Exemplo n.º 14
0
 private static int determineCheckDigit(int lgPatternFound) throws NotFoundException {
   for (int d = 0; d < 10; d++) {
     if (lgPatternFound == CHECK_DIGIT_ENCODINGS[d]) {
       return d;
     }
   }
   throw NotFoundException.getNotFoundInstance();
 }
Exemplo n.º 15
0
  /**
   * Skip all whitespace until we get to the first black line.
   *
   * @param row row of black/white values to search
   * @return index of the first black line.
   * @throws NotFoundException Throws exception if no black lines are found in the row
   */
  private static int skipWhiteSpace(BitArray row) throws NotFoundException {
    int width = row.getSize();
    int endStart = row.getNextSet(0);
    if (endStart == width) {
      throw NotFoundException.getNotFoundInstance();
    }

    return endStart;
  }
Exemplo n.º 16
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  int decodeMiddle(BitArray row, int[] startRange, StringBuilder resultString)
      throws NotFoundException {
    int[] counters = decodeMiddleCounters;
    counters[0] = 0;
    counters[1] = 0;
    counters[2] = 0;
    counters[3] = 0;
    int end = row.getSize();
    int rowOffset = startRange[1];

    int lgPatternFound = 0;

    for (int x = 0; x < 5 && rowOffset < end; x++) {
      int bestMatch =
          UPCEANReader.decodeDigit(row, counters, rowOffset, UPCEANReader.L_AND_G_PATTERNS);
      resultString.append((char) ('0' + bestMatch % 10));
      for (int counter : counters) {
        rowOffset += counter;
      }
      if (bestMatch >= 10) {
        lgPatternFound |= 1 << (4 - x);
      }
      if (x != 4) {
        // Read off separator if not last
        while (rowOffset < end && !row.get(rowOffset)) {
          rowOffset++;
        }
        while (rowOffset < end && row.get(rowOffset)) {
          rowOffset++;
        }
      }
    }

    if (resultString.length() != 5) {
      throw NotFoundException.getNotFoundInstance();
    }

    int checkDigit = determineCheckDigit(lgPatternFound);
    if (extensionChecksum(resultString.toString()) != checkDigit) {
      throw NotFoundException.getNotFoundInstance();
    }

    return rowOffset;
  }
  private static int estimateBlackPoint(int[] buckets) throws NotFoundException {
    // Find the tallest peak in the histogram.
    int numBuckets = buckets.length;
    int maxBucketCount = 0;
    int firstPeak = 0;
    int firstPeakSize = 0;
    for (int x = 0; x < numBuckets; x++) {
      if (buckets[x] > firstPeakSize) {
        firstPeak = x;
        firstPeakSize = buckets[x];
      }
      if (buckets[x] > maxBucketCount) {
        maxBucketCount = buckets[x];
      }
    }

    // Find the second-tallest peak which is somewhat far from the tallest peak.
    int secondPeak = 0;
    int secondPeakScore = 0;
    for (int x = 0; x < numBuckets; x++) {
      int distanceToBiggest = x - firstPeak;
      // Encourage more distant second peaks by multiplying by square of distance.
      int score = buckets[x] * distanceToBiggest * distanceToBiggest;
      if (score > secondPeakScore) {
        secondPeak = x;
        secondPeakScore = score;
      }
    }

    // Make sure firstPeak corresponds to the black peak.
    if (firstPeak > secondPeak) {
      int temp = firstPeak;
      firstPeak = secondPeak;
      secondPeak = temp;
    }

    // If there is too little contrast in the image to pick a meaningful black point, throw rather
    // than waste time trying to decode the image, and risk false positives.
    if (secondPeak - firstPeak <= numBuckets >> 4) {
      throw NotFoundException.getNotFoundInstance();
    }

    // Find a valley between them that is low and closer to the white peak.
    int bestValley = secondPeak - 1;
    int bestValleyScore = -1;
    for (int x = secondPeak - 1; x > firstPeak; x--) {
      int fromFirst = x - firstPeak;
      int score = fromFirst * fromFirst * (secondPeak - x) * (maxBucketCount - buckets[x]);
      if (score > bestValleyScore) {
        bestValley = x;
        bestValleyScore = score;
      }
    }

    return bestValley << LUMINANCE_SHIFT;
  }
  /**
   * @return the 3 best {@link FinderPattern}s from our list of candidates. The "best" are those
   *     that have been detected at least {@link #CENTER_QUORUM} times, and whose module size
   *     differs from the average among those patterns the least
   * @throws NotFoundException if 3 such finder patterns do not exist
   */
  private FinderPattern[] selectBestPatterns() throws NotFoundException {

    int startSize = possibleCenters.size();
    if (startSize < 3) {
      // Couldn't find enough finder patterns
      throw NotFoundException.getNotFoundInstance();
    }

    // Filter outlier possibilities whose module size is too different
    if (startSize > 3) {
      // But we can only afford to do so if we have at least 4 possibilities to choose from
      float totalModuleSize = 0.0f;
      float square = 0.0f;
      for (FinderPattern center : possibleCenters) {
        float size = center.getEstimatedModuleSize();
        totalModuleSize += size;
        square += size * size;
      }
      float average = totalModuleSize / (float) startSize;
      float stdDev = (float) Math.sqrt(square / startSize - average * average);

      Collections.sort(possibleCenters, new FurthestFromAverageComparator(average));

      float limit = Math.max(0.2f * average, stdDev);

      for (int i = 0; i < possibleCenters.size() && possibleCenters.size() > 3; i++) {
        FinderPattern pattern = possibleCenters.get(i);
        if (Math.abs(pattern.getEstimatedModuleSize() - average) > limit) {
          possibleCenters.remove(i);
          i--;
        }
      }
    }

    if (possibleCenters.size() > 3) {
      // Throw away all but those first size candidate points we found.

      float totalModuleSize = 0.0f;
      for (FinderPattern possibleCenter : possibleCenters) {
        totalModuleSize += possibleCenter.getEstimatedModuleSize();
      }

      float average = totalModuleSize / (float) possibleCenters.size();

      Collections.sort(possibleCenters, new CenterComparator(average));

      possibleCenters.subList(3, possibleCenters.size()).clear();
    }

    return new FinderPattern[] {
      possibleCenters.get(0), possibleCenters.get(1), possibleCenters.get(2)
    };
  }
Exemplo n.º 19
0
  /**
   * This method detects a code in a "pure" image -- that is, pure monochrome image which contains
   * only an unrotated, unskewed, image of a code, with some white border around it. This is a
   * specialized method that works exceptionally fast in this special case.
   *
   * @see com.google.zxing.pdf417.PDF417Reader#extractPureBits(BitMatrix)
   * @see com.google.zxing.qrcode.QRCodeReader#extractPureBits(BitMatrix)
   */
  private static BitMatrix extractPureBits(BitMatrix image) throws NotFoundException {

    int[] leftTopBlack = image.getTopLeftOnBit();
    int[] rightBottomBlack = image.getBottomRightOnBit();
    if (leftTopBlack == null || rightBottomBlack == null) {
      throw NotFoundException.getNotFoundInstance();
    }

    int moduleSize = moduleSize(leftTopBlack, image);

    int top = leftTopBlack[1];
    int bottom = rightBottomBlack[1];
    int left = leftTopBlack[0];
    int right = rightBottomBlack[0];

    int matrixWidth = (right - left + 1) / moduleSize;
    int matrixHeight = (bottom - top + 1) / moduleSize;
    if (matrixWidth == 0 || matrixHeight == 0) {
      throw NotFoundException.getNotFoundInstance();
    }

    // Push in the "border" by half the module width so that we start
    // sampling in the middle of the module. Just in case the image is a
    // little off, this will help recover.
    int nudge = moduleSize >> 1;
    top += nudge;
    left += nudge;

    // Now just read off the bits
    BitMatrix bits = new BitMatrix(matrixWidth, matrixHeight);
    for (int y = 0; y < matrixHeight; y++) {
      int iOffset = top + y * moduleSize;
      for (int x = 0; x < matrixWidth; x++) {
        if (image.get(left + x * moduleSize, iOffset)) {
          bits.set(x, y);
        }
      }
    }
    return bits;
  }
 protected final DetectorResult a(FinderPatternInfo paramFinderPatternInfo)
 {
   FinderPattern localFinderPattern1 = paramFinderPatternInfo.b();
   FinderPattern localFinderPattern2 = paramFinderPatternInfo.c();
   FinderPattern localFinderPattern3 = paramFinderPatternInfo.a();
   float f1 = a(localFinderPattern1, localFinderPattern2, localFinderPattern3);
   if (f1 < 1.0F)
     throw NotFoundException.a();
   int i = a(localFinderPattern1, localFinderPattern2, localFinderPattern3, f1);
   Version localVersion = Version.a(i);
   int j = -7 + localVersion.d();
   int k = localVersion.b().length;
   Object localObject = null;
   int m;
   int n;
   int i1;
   float f5;
   if (k > 0)
   {
     float f2 = localFinderPattern2.a() - localFinderPattern1.a() + localFinderPattern3.a();
     float f3 = localFinderPattern2.b() - localFinderPattern1.b() + localFinderPattern3.b();
     float f4 = 1.0F - 3.0F / j;
     m = (int)(localFinderPattern1.a() + f4 * (f2 - localFinderPattern1.a()));
     n = (int)(localFinderPattern1.b() + f4 * (f3 - localFinderPattern1.b()));
     i1 = 4;
     localObject = null;
     if (i1 <= 16)
       f5 = i1;
   }
   while (true)
   {
     try
     {
       AlignmentPattern localAlignmentPattern = a(f1, m, n, f5);
       localObject = localAlignmentPattern;
       PerspectiveTransform localPerspectiveTransform = a(localFinderPattern1, localFinderPattern2, localFinderPattern3, localObject, i);
       BitMatrix localBitMatrix = a(this.a, localPerspectiveTransform, i);
       if (localObject != null)
         break label270;
       arrayOfResultPoint = new ResultPoint[] { localFinderPattern3, localFinderPattern1, localFinderPattern2 };
       return new DetectorResult(localBitMatrix, arrayOfResultPoint);
     }
     catch (NotFoundException localNotFoundException)
     {
       i1 <<= 1;
     }
     break;
     label270: ResultPoint[] arrayOfResultPoint = { localFinderPattern3, localFinderPattern1, localFinderPattern2, localObject };
   }
 }
Exemplo n.º 21
0
  /**
   * Detects a PDF417 Code in an image. Only checks 0 and 180 degree rotations.
   *
   * @param hints optional hints to detector
   * @return {@link DetectorResult} encapsulating results of detecting a PDF417 Code
   * @throws NotFoundException if no PDF417 Code can be found
   */
  public DetectorResult detect(Hashtable<?, ?> hints) throws NotFoundException {
    // Fetch the 1 bit matrix once up front.
    BitMatrix matrix = image.getBlackMatrix();

    // Try to find the vertices assuming the image is upright.
    ResultPoint[] vertices = findVertices(matrix);
    if (vertices == null) {
      // Maybe the image is rotated 180 degrees?
      vertices = findVertices180(matrix);
      if (vertices != null) {
        correctCodeWordVertices(vertices, true);
      }
    } else {
      correctCodeWordVertices(vertices, false);
    }

    if (vertices == null) {
      throw NotFoundException.getNotFoundInstance();
    }

    float moduleWidth = computeModuleWidth(vertices);
    if (moduleWidth < 1.0f) {
      throw NotFoundException.getNotFoundInstance();
    }

    int dimension =
        computeDimension(vertices[4], vertices[6], vertices[5], vertices[7], moduleWidth);
    if (dimension < 1) {
      throw NotFoundException.getNotFoundInstance();
    }

    // Deskew and sample image.
    BitMatrix bits =
        sampleGrid(matrix, vertices[4], vertices[5], vertices[6], vertices[7], dimension);
    return new DetectorResult(
        bits, new ResultPoint[] {vertices[4], vertices[5], vertices[6], vertices[7]});
  }
 @Override
 public Result[] decodeMultiple(BinaryBitmap image, @SuppressWarnings("rawtypes") Hashtable hints)
     throws NotFoundException {
   @SuppressWarnings("rawtypes")
   Vector results = new Vector();
   doDecodeMultiple(image, hints, results, 0, 0);
   if (results.isEmpty()) {
     throw NotFoundException.getNotFoundInstance();
   }
   int numResults = results.size();
   Result[] resultArray = new Result[numResults];
   for (int i = 0; i < numResults; i++) {
     resultArray[i] = (Result) results.elementAt(i);
   }
   return resultArray;
 }
Exemplo n.º 23
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 private FinderPattern[] selectBestPatterns()
   throws NotFoundException
 {
   int i = this.possibleCenters.size();
   if (i < 3) {
     throw NotFoundException.getNotFoundInstance();
   }
   if (i > 3)
   {
     float f3 = 0.0F;
     float f4 = 0.0F;
     Iterator localIterator2 = this.possibleCenters.iterator();
     while (localIterator2.hasNext())
     {
       float f8 = ((FinderPattern)localIterator2.next()).getEstimatedModuleSize();
       f3 += f8;
       f4 += f8 * f8;
     }
     float f5 = f3 / i;
     float f6 = (float)Math.sqrt(f4 / i - f5 * f5);
     Collections.sort(this.possibleCenters, new FurthestFromAverageComparator(f5, null));
     float f7 = Math.max(0.2F * f5, f6);
     for (int j = 0; (j < this.possibleCenters.size()) && (this.possibleCenters.size() > 3); j++) {
       if (Math.abs(((FinderPattern)this.possibleCenters.get(j)).getEstimatedModuleSize() - f5) > f7)
       {
         this.possibleCenters.remove(j);
         j--;
       }
     }
   }
   if (this.possibleCenters.size() > 3)
   {
     float f1 = 0.0F;
     Iterator localIterator1 = this.possibleCenters.iterator();
     while (localIterator1.hasNext()) {
       f1 += ((FinderPattern)localIterator1.next()).getEstimatedModuleSize();
     }
     float f2 = f1 / this.possibleCenters.size();
     Collections.sort(this.possibleCenters, new CenterComparator(f2, null));
     this.possibleCenters.subList(3, this.possibleCenters.size()).clear();
   }
   FinderPattern[] arrayOfFinderPattern = new FinderPattern[3];
   arrayOfFinderPattern[0] = ((FinderPattern)this.possibleCenters.get(0));
   arrayOfFinderPattern[1] = ((FinderPattern)this.possibleCenters.get(1));
   arrayOfFinderPattern[2] = ((FinderPattern)this.possibleCenters.get(2));
   return arrayOfFinderPattern;
 }
 public WhiteRectangleDetector(BitMatrix bitmatrix, int i, int j, int k)
     throws NotFoundException
 {
     image = bitmatrix;
     height = bitmatrix.getHeight();
     width = bitmatrix.getWidth();
     i /= 2;
     leftInit = j - i;
     rightInit = j + i;
     upInit = k - i;
     downInit = k + i;
     if (upInit < 0 || leftInit < 0 || downInit >= height || rightInit >= width)
     {
         throw NotFoundException.getNotFoundInstance();
     } else
     {
         return;
     }
 }
Exemplo n.º 25
0
  /**
   * Attempts to decode a sequence of ITF black/white lines into single digit.
   *
   * @param counters the counts of runs of observed black/white/black/... values
   * @return The decoded digit
   * @throws NotFoundException if digit cannot be decoded
   */
  private static int decodeDigit(int[] counters) throws NotFoundException {

    int bestVariance = MAX_AVG_VARIANCE; // worst variance we'll accept
    int bestMatch = -1;
    int max = PATTERNS.length;
    for (int i = 0; i < max; i++) {
      int[] pattern = PATTERNS[i];
      int variance = patternMatchVariance(counters, pattern, MAX_INDIVIDUAL_VARIANCE);
      if (variance < bestVariance) {
        bestVariance = variance;
        bestMatch = i;
      }
    }
    if (bestMatch >= 0) {
      return bestMatch;
    } else {
      throw NotFoundException.getNotFoundInstance();
    }
  }
Exemplo n.º 26
0
  /**
   * The start & end patterns must be pre/post fixed by a quiet zone. This zone must be at least 10
   * times the width of a narrow line. Scan back until we either get to the start of the barcode or
   * match the necessary number of quiet zone pixels.
   *
   * <p>Note: Its assumed the row is reversed when using this method to find quiet zone after the
   * end pattern.
   *
   * <p>ref: http://www.barcode-1.net/i25code.html
   *
   * @param row bit array representing the scanned barcode.
   * @param startPattern index into row of the start or end pattern.
   * @throws NotFoundException if the quiet zone cannot be found, a ReaderException is thrown.
   */
  private void validateQuietZone(BitArray row, int startPattern) throws NotFoundException {

    int quietCount = this.narrowLineWidth * 10; // expect to find this many
    // pixels of quiet zone

    // if there are not so many pixel at all let's try as many as possible
    quietCount = quietCount < startPattern ? quietCount : startPattern;

    for (int i = startPattern - 1; quietCount > 0 && i >= 0; i--) {
      if (row.get(i)) {
        break;
      }
      quietCount--;
    }
    if (quietCount != 0) {
      // Unable to find the necessary number of quiet zone pixels.
      throw NotFoundException.getNotFoundInstance();
    }
  }
 private static int a(ResultPoint paramResultPoint1, ResultPoint paramResultPoint2, ResultPoint paramResultPoint3, float paramFloat)
 {
   int i = 7 + (MathUtils.a(ResultPoint.a(paramResultPoint1, paramResultPoint2) / paramFloat) + MathUtils.a(ResultPoint.a(paramResultPoint1, paramResultPoint3) / paramFloat) >> 1);
   switch (i & 0x3)
   {
   case 1:
   default:
   case 0:
   case 2:
     while (true)
     {
       return i;
       i++;
       continue;
       i--;
     }
   case 3:
   }
   throw NotFoundException.a();
 }
Exemplo n.º 28
0
 private static float moduleSize(int[] leftTopBlack, BitMatrix image) throws NotFoundException {
   int height = image.getHeight();
   int width = image.getWidth();
   int x = leftTopBlack[0];
   int y = leftTopBlack[1];
   boolean inBlack = true;
   int transitions = 0;
   while (x < width && y < height) {
     if (inBlack != image.get(x, y)) {
       if (++transitions == 5) {
         break;
       }
       inBlack = !inBlack;
     }
     x++;
     y++;
   }
   if (x == width || y == height) {
     throw NotFoundException.getNotFoundInstance();
   }
   return (x - leftTopBlack[0]) / 7.0f;
 }
Exemplo n.º 29
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 public String parseInformation() throws NotFoundException {
   if (getInformation().getSize() < 48) {
     throw NotFoundException.getNotFoundInstance();
   }
   StringBuilder localStringBuilder = new StringBuilder();
   encodeCompressedGtin(localStringBuilder, 8);
   int i = getGeneralDecoder().extractNumericValueFromBitArray(48, 2);
   localStringBuilder.append("(393");
   localStringBuilder.append(i);
   localStringBuilder.append(')');
   int j = getGeneralDecoder().extractNumericValueFromBitArray(50, 10);
   if (j / 100 == 0) {
     localStringBuilder.append('0');
   }
   if (j / 10 == 0) {
     localStringBuilder.append('0');
   }
   localStringBuilder.append(j);
   localStringBuilder.append(
       getGeneralDecoder().decodeGeneralPurposeField(60, null).getNewString());
   return localStringBuilder.toString();
 }
Exemplo n.º 30
0
  private static int[] findAsteriskPattern(BitArray row, int[] counters) throws NotFoundException {
    // Should not be needed, but appears to work around a Java 7 JIT bug? This comes in corrupted
    Arrays.fill(counters, 0);

    int width = row.getSize();
    int rowOffset = row.getNextSet(0);

    int counterPosition = 0;
    int patternStart = rowOffset;
    boolean isWhite = false;
    int patternLength = counters.length;

    for (int i = rowOffset; i < width; i++) {
      if (row.get(i) ^ isWhite) {
        counters[counterPosition]++;
      } else {
        if (counterPosition == patternLength - 1) {
          // Look for whitespace before start pattern, >= 50% of width of start pattern
          if (toNarrowWidePattern(counters) == ASTERISK_ENCODING
              && row.isRange(
                  Math.max(0, patternStart - ((i - patternStart) >> 1)), patternStart, false)) {
            return new int[] {patternStart, i};
          }
          patternStart += counters[0] + counters[1];
          System.arraycopy(counters, 2, counters, 0, patternLength - 2);
          counters[patternLength - 2] = 0;
          counters[patternLength - 1] = 0;
          counterPosition--;
        } else {
          counterPosition++;
        }
        counters[counterPosition] = 1;
        isWhite = !isWhite;
      }
    }
    throw NotFoundException.getNotFoundInstance();
  }