title: How to add crosses on superimposed images?
body: <p>I am working on a code where I add crosses to an image to mark specific positions on the image. I already did that but now I have a superimposed image i.e., it is an image I display using imagej and it appears with a scroll at the bottom. When you move the scroll, I see the image below the first image, move the scroll, you see the third image, and so on.
  Any hints on how I can add my crosses to these images? to be more specific how can I access each image, add the crosses, go to the next, add the crosses to the same positions or different positions?
  Thanks</p>