// 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; } }
private boolean decode( MonochromeBitmapSource source, float rotation, String expectedText, boolean tryHarder) { Result result; String suffix = " (" + (tryHarder ? "try harder, " : "") + "rotation: " + rotation + ')'; try { result = barcodeReader.decode(source, tryHarder ? TRY_HARDER_HINT : null); } catch (ReaderException re) { System.out.println(re + suffix); return false; } if (!expectedFormat.equals(result.getBarcodeFormat())) { System.out.println( "Format mismatch: expected '" + expectedFormat + "' but got '" + result.getBarcodeFormat() + "'" + suffix); return false; } String resultText = result.getText(); if (!expectedText.equals(resultText)) { System.out.println( "Mismatch: expected '" + expectedText + "' but got '" + resultText + "'" + suffix); return false; } return true; }
/** * Verifies that the specified symbol was encoded and rendered in a way that matches expectations. * * @param symbol the symbol to check * @throws IOException if there is any I/O error * @throws ReaderException if ZXing has an issue decoding the barcode image */ private void verifySuccess(Symbol symbol) throws IOException, ReaderException { assertEquals("error message", "", symbol.error_msg); List<String> expectedList = Files.readAllLines(codewordsFile.toPath(), UTF_8); try { // try to verify codewords int[] actualCodewords = symbol.getCodewords(); assertEquals(expectedList.size(), actualCodewords.length); for (int i = 0; i < actualCodewords.length; i++) { int expected = getInt(expectedList.get(i)); int actual = actualCodewords[i]; assertEquals("at codeword index " + i, expected, actual); } } catch (UnsupportedOperationException e) { // codewords aren't supported, try to verify patterns String[] actualPatterns = symbol.pattern; assertEquals(expectedList.size(), actualPatterns.length); for (int i = 0; i < actualPatterns.length; i++) { String expected = expectedList.get(i); String actual = actualPatterns[i]; assertEquals("at pattern index " + i, expected, actual); } } // make sure the barcode images match BufferedImage expected = ImageIO.read(pngFile); BufferedImage actual = draw(symbol); assertEqual(expected, actual); // if possible, ensure an independent third party (ZXing) can read the generated barcode and // agrees on what it represents Reader zxingReader = findReader(symbol); if (zxingReader != null) { LuminanceSource source = new BufferedImageLuminanceSource(expected); BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); Map<DecodeHintType, Boolean> hints = Collections.singletonMap(DecodeHintType.PURE_BARCODE, Boolean.TRUE); Result result = zxingReader.decode(bitmap, hints); String zxingData = removeChecksum(result.getText(), symbol); String okapiData = removeStartStopChars(symbol.getContent(), symbol); assertEquals(okapiData, zxingData); } }
public String attemptDecodePicture(Bitmap thumbnail) { if (thumbnail == null) { Log.d(TAG, "No picture selected"); } else { Log.d(TAG, "Picture selected"); Result rawResult = null; Reader reader = new QRCodeReader(); int w = thumbnail.getWidth(); int h = thumbnail.getHeight(); int maxOneDimension = 500; if (w * h > maxOneDimension * maxOneDimension) { // too big, reduce float bitmapRatio = (float) w / (float) h; if (bitmapRatio > 0) { w = maxOneDimension; h = (int) (w / bitmapRatio); } else { h = maxOneDimension; w = (int) (h * bitmapRatio); } thumbnail = Bitmap.createScaledBitmap(thumbnail, w, h, true); } int[] pixels = new int[w * h]; thumbnail.getPixels(pixels, 0, w, 0, 0, w, h); RGBLuminanceSource source = new RGBLuminanceSource(w, h, pixels); if (source.getMatrix() != null) { BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); try { rawResult = reader.decode(bitmap); } catch (ReaderException re) { re.printStackTrace(); } finally { reader.reset(); } } if (rawResult != null) { Log.d(TAG, "QR code found " + rawResult.getText()); return rawResult.getText(); } else { Log.d(TAG, "Picture No QR code found"); } } return null; }
// @Override public Result decode(BinaryBitmap image, Hashtable hints) throws NotFoundException, ChecksumException, FormatException { int width = image.getWidth(); int height = image.getHeight(); int halfWidth = width / 2; int halfHeight = height / 2; BinaryBitmap topLeft = image.crop(0, 0, halfWidth, halfHeight); try { return delegate.decode(topLeft, hints); } catch (NotFoundException re) { // continue } BinaryBitmap topRight = image.crop(halfWidth, 0, halfWidth, halfHeight); try { return delegate.decode(topRight, hints); } catch (NotFoundException re) { // continue } BinaryBitmap bottomLeft = image.crop(0, halfHeight, halfWidth, halfHeight); try { return delegate.decode(bottomLeft, hints); } catch (NotFoundException re) { // continue } BinaryBitmap bottomRight = image.crop(halfWidth, halfHeight, halfWidth, halfHeight); try { return delegate.decode(bottomRight, hints); } catch (NotFoundException re) { // continue } int quarterWidth = halfWidth / 2; int quarterHeight = halfHeight / 2; BinaryBitmap center = image.crop(quarterWidth, quarterHeight, halfWidth, halfHeight); return delegate.decode(center, hints); }
public String attemptDecodeBytes(byte[] bytes, Camera camera) { Result rawResult = null; Reader reader = new QRCodeReader(); int w = camera.getParameters().getPreviewSize().width; int h = camera.getParameters().getPreviewSize().height; PlanarYUVLuminanceSource source = new PlanarYUVLuminanceSource(bytes, w, h, 0, 0, w, h, false); if (source.getMatrix() != null) { BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source)); try { rawResult = reader.decode(bitmap); } catch (ReaderException re) { // nothing to do here } finally { reader.reset(); } } if (rawResult != null) { Log.d(TAG, "QR code found " + rawResult.getText()); return rawResult.getText(); } else { return null; } }
public void draw() { if (cam.available() == true) { cam.read(); pushMatrix(); scale(-1, 1); translate(-cam.width, 0); image(cam, 0, 0); popMatrix(); // image(cam, 0,0); try { // Now test to see if it has a QR code embedded in it LuminanceSource source = new BufferedImageLuminanceSource((BufferedImage) cam.getImage()); BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); Result result = reader.decode(bitmap); // Once we get the results, we can do some display if (result.getText() != null) { println(result.getText()); ResultPoint[] points = result.getResultPoints(); // Draw some ellipses on at the control points for (int i = 0; i < points.length; i++) { // fill(#ff8c00); ellipse(points[i].getX(), points[i].getY(), 20, 20); // fill(#ff0000); text(i, points[i].getX(), points[i].getY()); } // Now fetch the book cover, if it is found if (!result.getText().equals(lastISBNAcquired)) { String url = "http://covers.oreilly.com/images/" + result.getText() + "/cat.gif"; try { cover = loadImage(url, "gif"); lastISBNAcquired = result.getText(); } catch (Exception e) { cover = null; } } // Superimpose the cover on the image if (cover != null) { image(cover, points[1].getX(), points[1].getY()); } } } catch (Exception e) { // println(e.toString()); } } }
@SuppressWarnings("unchecked") private void doDecodeMultiple( BinaryBitmap image, @SuppressWarnings("rawtypes") Hashtable hints, @SuppressWarnings("rawtypes") Vector results, int xOffset, int yOffset) { Result result; try { result = delegate.decode(image, hints); } catch (ReaderException re) { return; } boolean alreadyFound = false; for (int i = 0; i < results.size(); i++) { Result existingResult = (Result) results.elementAt(i); if (existingResult.getText().equals(result.getText())) { alreadyFound = true; break; } } if (alreadyFound) { return; } results.addElement(translateResultPoints(result, xOffset, yOffset)); ResultPoint[] resultPoints = result.getResultPoints(); if (resultPoints == null || resultPoints.length == 0) { return; } int width = image.getWidth(); int height = image.getHeight(); float minX = width; float minY = height; float maxX = 0.0f; float maxY = 0.0f; for (int i = 0; i < resultPoints.length; i++) { ResultPoint point = resultPoints[i]; float x = point.getX(); float y = point.getY(); if (x < minX) { minX = x; } if (y < minY) { minY = y; } if (x > maxX) { maxX = x; } if (y > maxY) { maxY = y; } } // Decode left of barcode if (minX > MIN_DIMENSION_TO_RECUR) { doDecodeMultiple(image.crop(0, 0, (int) minX, height), hints, results, xOffset, yOffset); } // Decode above barcode if (minY > MIN_DIMENSION_TO_RECUR) { doDecodeMultiple(image.crop(0, 0, width, (int) minY), hints, results, xOffset, yOffset); } // Decode right of barcode if (maxX < width - MIN_DIMENSION_TO_RECUR) { doDecodeMultiple( image.crop((int) maxX, 0, width - (int) maxX, height), hints, results, xOffset + (int) maxX, yOffset); } // Decode below barcode if (maxY < height - MIN_DIMENSION_TO_RECUR) { doDecodeMultiple( image.crop(0, (int) maxY, width, height - (int) maxY), hints, results, xOffset, yOffset + (int) maxY); } }
// @Override public void reset() { delegate.reset(); }