Java Code Examples for com.google.zxing.Result#putMetadata()
The following examples show how to use
com.google.zxing.Result#putMetadata() .
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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();
}
