persistable sclass SemanticImage<A> extends Var<A> implements MakesBufferedImage {
  IIntegralImage image;
  
  *(IIntegralImage *image, A value) {
    super(value);
  }
  *(A value, IIntegralImage *image) {
    super(value);
  }
  
  public int getWidth() { ret image.getWidth(); }
  public int getHeight() { ret image.getHeight(); }
  public BufferedImage getBufferedImage() { ret image.getBufferedImage(); }
  
  IIntegralImage image aka img aka getImage() { ret image; }
}