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

Example 46 with ResultPoint

use of com.google.zxing.ResultPoint in project incubator-weex by apache.

the class DataMatrixReader method decode.

@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);
        points = NO_POINTS;
    } else {
        DetectorResult detectorResult = new Detector(image.getBlackMatrix()).detect();
        decoderResult = decoder.decode(detectorResult.getBits());
        points = detectorResult.getPoints();
    }
    Result result = new Result(decoderResult.getText(), decoderResult.getRawBytes(), points, BarcodeFormat.DATA_MATRIX);
    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 47 with ResultPoint

use of com.google.zxing.ResultPoint in project incubator-weex by apache.

the class Detector method transitionsBetween.

/**
 * Counts the number of black/white transitions between two points, using something like Bresenham's algorithm.
 */
private ResultPointsAndTransitions transitionsBetween(ResultPoint from, ResultPoint to) {
    // See QR Code Detector, sizeOfBlackWhiteBlackRun()
    int fromX = (int) from.getX();
    int fromY = (int) from.getY();
    int toX = (int) to.getX();
    int toY = (int) to.getY();
    boolean steep = Math.abs(toY - fromY) > Math.abs(toX - fromX);
    if (steep) {
        int temp = fromX;
        fromX = fromY;
        fromY = temp;
        temp = toX;
        toX = toY;
        toY = temp;
    }
    int dx = Math.abs(toX - fromX);
    int dy = Math.abs(toY - fromY);
    int error = -dx / 2;
    int ystep = fromY < toY ? 1 : -1;
    int xstep = fromX < toX ? 1 : -1;
    int transitions = 0;
    boolean inBlack = image.get(steep ? fromY : fromX, steep ? fromX : fromY);
    for (int x = fromX, y = fromY; x != toX; x += xstep) {
        boolean isBlack = image.get(steep ? y : x, steep ? x : y);
        if (isBlack != inBlack) {
            transitions++;
            inBlack = isBlack;
        }
        error += dy;
        if (error > 0) {
            if (y == toY) {
                break;
            }
            y += ystep;
            error -= dx;
        }
    }
    return new ResultPointsAndTransitions(from, to, transitions);
}

Example 48 with ResultPoint

use of com.google.zxing.ResultPoint in project incubator-weex by apache.

the class Detector method correctTopRightRectangular.

/**
 * Calculates the position of the white top right module using the output of the rectangle detector
 * for a rectangular matrix
 */
private ResultPoint correctTopRightRectangular(ResultPoint bottomLeft, ResultPoint bottomRight, ResultPoint topLeft, ResultPoint topRight, int dimensionTop, int dimensionRight) {
    float corr = distance(bottomLeft, bottomRight) / (float) dimensionTop;
    int norm = distance(topLeft, topRight);
    float cos = (topRight.getX() - topLeft.getX()) / norm;
    float sin = (topRight.getY() - topLeft.getY()) / norm;
    ResultPoint c1 = new ResultPoint(topRight.getX() + corr * cos, topRight.getY() + corr * sin);
    corr = distance(bottomLeft, topLeft) / (float) dimensionRight;
    norm = distance(bottomRight, topRight);
    cos = (topRight.getX() - bottomRight.getX()) / norm;
    sin = (topRight.getY() - bottomRight.getY()) / norm;
    ResultPoint c2 = new ResultPoint(topRight.getX() + corr * cos, topRight.getY() + corr * sin);
    if (!isValid(c1)) {
        if (isValid(c2)) {
            return c2;
        }
        return null;
    }
    if (!isValid(c2)) {
        return c1;
    }
    int l1 = Math.abs(dimensionTop - transitionsBetween(topLeft, c1).getTransitions()) + Math.abs(dimensionRight - transitionsBetween(bottomRight, c1).getTransitions());
    int l2 = Math.abs(dimensionTop - transitionsBetween(topLeft, c2).getTransitions()) + Math.abs(dimensionRight - transitionsBetween(bottomRight, c2).getTransitions());
    if (l1 <= l2) {
        return c1;
    }
    return c2;
}

Example 49 with ResultPoint

use of com.google.zxing.ResultPoint in project incubator-weex by apache.

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 50 with ResultPoint

use of com.google.zxing.ResultPoint in project incubator-weex by apache.

the class QRCodeMultiReader method decodeMultiple.

@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()]);
    }
}