// Look for motion between 2 images
// We only do one channel

srecord noeq LookForMotion(
  IIntegralImage img1,
  IIntegralImage img2,
  int splitDepth // how often to split - our new, more intuitive measure over "featureSize"
) extends Probabilistic {
  bool verbose;

  record LookAtClip(Rect r) implements Runnable {
    run {
      // check whether image brightness has changed over the last image
      // if not: guess "no motion"
      // if yes: guess "motion"
      //         split image
      //         repeat procedure for each part of image
    }
  }
  
  run { schedule(root()); }
  
  LookAtClip root() {
    assertEquals("Sizes of compared images have to be equal", img1.getSize(), img2.getSize());
    ret new LookAtClip(imageRect(img1));
  }
}

Began life as a copy of #1032159