svoid test_ImageSimilarityAtScale() {
  var img = randomImage(50, 20);
  var ii = IntegralImage(img);
  ImageSimilarityAtScale algo = new(ii, ii, 4);
  new ProbabilisticScheduler ps;
  ps.run(algo);
  while (ps.step()) {
    print("Value: " + algo!);
  }
}