run("HeLa Cells (1.3M, 48-bit RGB)");
run("Set Measurements...", "area mean min integrated area_fraction limit display");
Stack.getDimensions(w, h, ch, s, fr);
Stack.setDisplayMode("color");
setSlice(1);
waitForUser("red","scroll to red ch");
Stack.getPosition(red, s, fr);
waitForUser("grn","find green");
Stack.getPosition(grn, s, fr);
waitForUser("blu","find blue");
Stack.getPosition(blu, s, fr);