!752

sS images = "#1005902 #1005903 #1005904 #1005905";

static new Set<S> visible;

p {
  new ShootLoop {
    void recognize {
      selections.clear();
      
      for (S imageID : splitAtSpace(images)) {
        L<Rect> l = findImageAll(imageID);
        selections.addAll(l);
        addOrRemove(visible, imageID, nempty(l));
      }
        
      showThumbnail();
      printStruct("visible", asList(visible));
    }
  }.run();
}