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

Example 36 with ResultPoint

use of com.google.zxing.ResultPoint 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 37 with ResultPoint

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

the class BoundingBox method calculateMinMaxValues.

private void calculateMinMaxValues() {
    if (topLeft == null) {
        topLeft = new ResultPoint(0, topRight.getY());
        bottomLeft = new ResultPoint(0, bottomRight.getY());
    } else if (topRight == null) {
        topRight = new ResultPoint(image.getWidth() - 1, topLeft.getY());
        bottomRight = new ResultPoint(image.getWidth() - 1, bottomLeft.getY());
    }
    minX = (int) Math.min(topLeft.getX(), bottomLeft.getX());
    maxX = (int) Math.max(topRight.getX(), bottomRight.getX());
    minY = (int) Math.min(topLeft.getY(), topRight.getY());
    maxY = (int) Math.max(bottomLeft.getY(), bottomRight.getY());
}

Example 38 with ResultPoint

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

the class DetectionResultRowIndicatorColumn method adjustIncompleteIndicatorColumnRowNumbers.

// TODO maybe we should add missing codewords to store the correct row number to make
// finding row numbers for other columns easier
// use row height count to make detection of invalid row numbers more reliable
int adjustIncompleteIndicatorColumnRowNumbers(BarcodeMetadata barcodeMetadata) {
    BoundingBox boundingBox = getBoundingBox();
    ResultPoint top = isLeft ? boundingBox.getTopLeft() : boundingBox.getTopRight();
    ResultPoint bottom = isLeft ? boundingBox.getBottomLeft() : boundingBox.getBottomRight();
    int firstRow = imageRowToCodewordIndex((int) top.getY());
    int lastRow = imageRowToCodewordIndex((int) bottom.getY());
    float averageRowHeight = (lastRow - firstRow) / (float) barcodeMetadata.getRowCount();
    Codeword[] codewords = getCodewords();
    int barcodeRow = -1;
    int maxRowHeight = 1;
    int currentRowHeight = 0;
    for (int codewordsRow = firstRow; codewordsRow < lastRow; codewordsRow++) {
        if (codewords[codewordsRow] == null) {
            continue;
        }
        Codeword codeword = codewords[codewordsRow];
        codeword.setRowNumberAsRowIndicatorColumn();
        int rowDifference = codeword.getRowNumber() - barcodeRow;
        if (rowDifference == 0) {
            currentRowHeight++;
        } else if (rowDifference == 1) {
            maxRowHeight = Math.max(maxRowHeight, currentRowHeight);
            currentRowHeight = 1;
            barcodeRow = codeword.getRowNumber();
        } else if (codeword.getRowNumber() >= barcodeMetadata.getRowCount()) {
            codewords[codewordsRow] = null;
        } else {
            barcodeRow = codeword.getRowNumber();
            currentRowHeight = 1;
        }
    }
    return (int) (averageRowHeight + 0.5);
}

Example 39 with ResultPoint

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

the class Detector method processFinderPatternInfo.

protected final DetectorResult processFinderPatternInfo(FinderPatternInfo info) throws NotFoundException, FormatException {
    FinderPattern topLeft = info.getTopLeft();
    FinderPattern topRight = info.getTopRight();
    FinderPattern bottomLeft = info.getBottomLeft();
    float moduleSize = calculateModuleSize(topLeft, topRight, bottomLeft);
    if (moduleSize < 1.0f) {
        throw NotFoundException.getNotFoundInstance();
    }
    int dimension = computeDimension(topLeft, topRight, bottomLeft, moduleSize);
    Version provisionalVersion = Version.getProvisionalVersionForDimension(dimension);
    int modulesBetweenFPCenters = provisionalVersion.getDimensionForVersion() - 7;
    AlignmentPattern alignmentPattern = null;
    // Anything above version 1 has an alignment pattern
    if (provisionalVersion.getAlignmentPatternCenters().length > 0) {
        // Guess where a "bottom right" finder pattern would have been
        float bottomRightX = topRight.getX() - topLeft.getX() + bottomLeft.getX();
        float bottomRightY = topRight.getY() - topLeft.getY() + bottomLeft.getY();
        // Estimate that alignment pattern is closer by 3 modules
        // from "bottom right" to known top left location
        float correctionToTopLeft = 1.0f - 3.0f / (float) modulesBetweenFPCenters;
        int estAlignmentX = (int) (topLeft.getX() + correctionToTopLeft * (bottomRightX - topLeft.getX()));
        int estAlignmentY = (int) (topLeft.getY() + correctionToTopLeft * (bottomRightY - topLeft.getY()));
        // Kind of arbitrary -- expand search radius before giving up
        for (int i = 4; i <= 16; i <<= 1) {
            try {
                alignmentPattern = findAlignmentInRegion(moduleSize, estAlignmentX, estAlignmentY, (float) i);
                break;
            } catch (NotFoundException re) {
            // try next round
            }
        }
    // If we didn't find alignment pattern... well try anyway without it
    }
    PerspectiveTransform transform = createTransform(topLeft, topRight, bottomLeft, alignmentPattern, dimension);
    BitMatrix bits = sampleGrid(image, transform, dimension);
    ResultPoint[] points;
    if (alignmentPattern == null) {
        points = new ResultPoint[] { bottomLeft, topLeft, topRight };
    } else {
        points = new ResultPoint[] { bottomLeft, topLeft, topRight, alignmentPattern };
    }
    return new DetectorResult(bits, points);
}

Example 40 with ResultPoint

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

the class QRCodeDecoderMetaData method applyMirroredCorrection.

/**
   * Apply the result points' order correction due to mirroring.
   * 
   * @param points Array of points to apply mirror correction to.
   */
public void applyMirroredCorrection(ResultPoint[] points) {
    if (!mirrored || points == null || points.length < 3) {
        return;
    }
    ResultPoint bottomLeft = points[0];
    points[0] = points[2];
    points[2] = bottomLeft;
// No need to 'fix' top-left and alignment pattern.
}