How to use

removePointNoise

method

in

boofcv.alg.filter.binary.BinaryImageOps

  @Override
  public void process(GrayU8 input) {
    // Select a reasonable threshold
    double mean = GThresholdImageOps.computeOtsu(input,0,255);
    // create a binary image by thresholding
    ThresholdImageOps.threshold(input, binary, (int)mean, down);
    // reduce noise with some filtering
    BinaryImageOps.removePointNoise(binary, filtered1);
    // draw binary image for output
    if( showBinary ) {
      VisualizeImageData.binaryToBitmap(filtered1, false, bitmap, bitmapTmp);
    } else {
      ConvertBitmap.boofToBitmap(input,bitmap,bitmapTmp);
    }
    // draw the ellipses
    findContours.process(filtered1,contourOutput);
    List<Contour> contours = BinaryImageOps.contour(filtered1, ConnectRule.EIGHT,null);
    resetShapes();
    for (Contour contour : contours) {
      List<Point2D_I32> points = contour.external;
      if (points.size() < 20)
        continue;
      fitShape(points);
    }
    finalizeShapes();
    visualizationPending = true;
  }
}

BinaryImageOps.removePointNoise(binary, afterOps);
break;