!752

static ImageSurface is;

p {
  final BWImage img = shootScreenBW();
  int g = 3;
  setFrameTitle("g = " + g, is = showImageWithSelections(img.getBufferedImage(), autoSegment(img, g)));
  
  installTimer(is, 100, new Runnable {
    Rect lastRect;
    
    public void run() {
      Rect r = showImageWithSelections_highlighted.get();
      if (neq(r, lastRect) && r != null) {
        lastRect = r;
        S md5 = md5OfBWImage(img.clip(r));
        print(r + ", bw md5: " + md5);
      }
    }
  });
}