Пример #1
0
  /**
   * Launch an AsyncTask to perform an OCR decode for single-shot mode.
   *
   * @param data Image data
   * @param width Image width
   * @param height Image height
   */
  private void ocrDecode(byte[] data, int width, int height) {
    beepManager.playBeepSoundAndVibrate();
    activity.displayProgressDialog();

    // Launch OCR asynchronously, so we get the dialog box displayed immediately
    new OcrRecognizeAsyncTask(activity, baseApi, data, width, height).execute();
  }
Пример #2
0
 private void sendContinuousOcrFailMessage() {
   Handler handler = activity.getHandler();
   if (handler != null) {
     Message message =
         Message.obtain(
             handler, R.id.ocr_continuous_decode_failed, new OcrResultFailure(timeRequired));
     message.sendToTarget();
   }
 }
Пример #3
0
  @SuppressWarnings("unused")
  private OcrResult getOcrResult() {
    OcrResult ocrResult;
    String textResult;
    long start = System.currentTimeMillis();

    try {
      baseApi.setImage(ReadFile.readBitmap(bitmap));
      textResult = baseApi.getUTF8Text();
      timeRequired = System.currentTimeMillis() - start;

      // Check for failure to recognize text
      if (textResult == null || textResult.equals("")) {
        return null;
      }
      ocrResult = new OcrResult();
      ocrResult.setWordConfidences(baseApi.wordConfidences());
      ocrResult.setMeanConfidence(baseApi.meanConfidence());
      if (ViewfinderView.DRAW_REGION_BOXES) {
        ocrResult.setRegionBoundingBoxes(baseApi.getRegions().getBoxRects());
      }
      if (ViewfinderView.DRAW_TEXTLINE_BOXES) {
        ocrResult.setTextlineBoundingBoxes(baseApi.getTextlines().getBoxRects());
      }
      if (ViewfinderView.DRAW_STRIP_BOXES) {
        ocrResult.setStripBoundingBoxes(baseApi.getStrips().getBoxRects());
      }

      // Always get the word bounding boxes--we want it for annotating the bitmap after the user
      // presses the shutter button, in addition to maybe wanting to draw boxes/words during the
      // continuous mode recognition.
      ocrResult.setWordBoundingBoxes(baseApi.getWords().getBoxRects());

      //      if (ViewfinderView.DRAW_CHARACTER_BOXES || ViewfinderView.DRAW_CHARACTER_TEXT) {
      //        ocrResult.setCharacterBoundingBoxes(baseApi.getCharacters().getBoxRects());
      //      }
    } catch (RuntimeException e) {
      Log.e(
          "OcrRecognizeAsyncTask",
          "Caught RuntimeException in request to Tesseract. Setting state to CONTINUOUS_STOPPED.");
      e.printStackTrace();
      try {
        baseApi.clear();
        activity.stopHandler();
      } catch (NullPointerException e1) {
        // Continue
      }
      return null;
    }
    timeRequired = System.currentTimeMillis() - start;
    ocrResult.setBitmap(bitmap);
    ocrResult.setText(textResult);
    ocrResult.setRecognitionTimeRequired(timeRequired);
    return ocrResult;
  }
Пример #4
0
  /**
   * Perform an OCR decode for realtime recognition mode.
   *
   * @param data Image data
   * @param width Image width
   * @param height Image height
   */
  private void ocrContinuousDecode(byte[] data, int width, int height) {
    PlanarYUVLuminanceSource source =
        activity.getCameraManager().buildLuminanceSource(data, width, height);
    if (source == null) {
      sendContinuousOcrFailMessage();
      return;
    }
    bitmap = source.renderCroppedGreyscaleBitmap();

    OcrResult ocrResult = getOcrResult();
    Handler handler = activity.getHandler();
    if (handler == null) {
      return;
    }

    if (ocrResult == null) {
      try {
        sendContinuousOcrFailMessage();
      } catch (NullPointerException e) {
        activity.stopHandler();
      } finally {
        bitmap.recycle();
        baseApi.clear();
      }
      return;
    }

    try {
      Message message = Message.obtain(handler, R.id.ocr_continuous_decode_succeeded, ocrResult);
      message.sendToTarget();
    } catch (NullPointerException e) {
      activity.stopHandler();
    } finally {
      baseApi.clear();
    }
  }
Пример #5
0
 DecodeHandler(CaptureActivity activity) {
   this.activity = activity;
   baseApi = activity.getBaseApi();
   beepManager = new BeepManager(activity);
   beepManager.updatePrefs();
 }