newImage("Untitled", "RGB Ramp", 500, 500, 5);
  n = nSlices;
  original = getImageID;
  for (i=1; i<=n; i++) {
     selectImage(original);
     setSlice(i);
     run("Duplicate...", "title=HSB"+i);
     run("HSB Stack");
     //selectWindow("HSB"+i);
     setSlice(3);
     print("title="+getTitle+", slice="+getSliceNumber);
  }