!7

module ImageSegmenter extends DynImageSurface {
  float contrastThreshold = 0.5f;
  ReliableSingleThread rst = dm_rst(this, r segmentIt);
  
  visualize {
    JSlider slider = jLiveValueSlider(dm_fieldLiveValue('contrastThreshold));
    main.onChange(slider, rst);
    ret withCenteredLineBelow(super.visualize(),
      withLabel("Contrast  Threshold:", slider));
  }
  
  start {
    ownResource(vmBus_onMessage('newClipboardContents, voidfunc(fO o) {
      if (o cast BufferedImage) {
        temp enter();
        thread {
          setImage(o);
          rst.trigger();
        }
      }
    }));
  }
  
  void segmentIt {
    temp enter();
    if (!hasImage()) ret;
    new AutoSegmenter as;
    as.g = 3;
    as.contrastThreshold = contrastThreshold;
    overlaySelectionsOnImageSurface(imageSurface, as.go(BWImage(getImage())));
  }
}