Exemplo n.º 1
0
 /** 解析QRCode二维码 */
 @SuppressWarnings("unchecked")
 public void decode(File file) {
   try {
     BufferedImage image;
     try {
       image = ImageIO.read(file);
       if (image == null) {
         System.out.println("Could not decode image");
       }
       LuminanceSource source = new BufferedImageLuminanceSource(image);
       BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
       Result result;
       @SuppressWarnings("rawtypes")
       Hashtable hints = new Hashtable();
       // 解码设置编码方式为:utf-8
       hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
       result = new MultiFormatReader().decode(bitmap, hints);
       String resultStr = result.getText();
       System.out.println("解析后内容:" + resultStr);
     } catch (IOException ioe) {
       System.out.println(ioe.toString());
     } catch (ReaderException re) {
       System.out.println(re.toString());
     }
   } catch (Exception ex) {
     System.out.println(ex.toString());
   }
 }
  private static void assertCorrectImage2string(String path, String expected)
      throws IOException, NotFoundException {

    File file = new File(path);
    if (!file.exists()) {
      // Support running from project root too
      file = new File("core", path);
    }

    BufferedImage image = ImageIO.read(file);
    BinaryBitmap binaryMap =
        new BinaryBitmap(new GlobalHistogramBinarizer(new BufferedImageLuminanceSource(image)));
    int rowNumber = binaryMap.getHeight() / 2;
    BitArray row = binaryMap.getBlackRow(rowNumber, null);

    Result result;
    try {
      RSSExpandedReader rssExpandedReader = new RSSExpandedReader();
      result = rssExpandedReader.decodeRow(rowNumber, row, null);
    } catch (ReaderException re) {
      fail(re.toString());
      return;
    }

    assertSame(BarcodeFormat.RSS_EXPANDED, result.getBarcodeFormat());
    assertEquals(expected, result.getText());
  }
Exemplo n.º 3
0
 private static String getDecodeText(File file) {
   BufferedImage image;
   try {
     image = ImageReader.readImage(file);
   } catch (IOException ioe) {
     return ioe.toString();
   }
   LuminanceSource source = new BufferedImageLuminanceSource(image);
   BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
   Result result;
   try {
     result = new MultiFormatReader().decode(bitmap);
   } catch (ReaderException re) {
     return re.toString();
   }
   return String.valueOf(result.getText());
 }
Exemplo n.º 4
0
 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;
 }
Exemplo n.º 5
0
 /**
  * 解码
  *
  * @param filePath
  * @return
  */
 @SuppressWarnings({"rawtypes", "unchecked"})
 public static String decode(String filePath) {
   BufferedImage image;
   try {
     image = ImageIO.read(new File(filePath));
   } catch (IOException ioe) {
     return ioe.toString();
   }
   if (image == null) {
     return "Could not decode image";
   }
   LuminanceSource source = new BufferedImageLuminanceSource(image);
   BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
   Result result;
   try {
     Hashtable hints = new Hashtable();
     hints.put(EncodeHintType.CHARACTER_SET, ToolString.encoding);
     result = new MultiFormatReader().decode(bitmap, hints);
   } catch (ReaderException re) {
     return re.toString();
   }
   return result.getText();
 }