Can CHDK semi-transparently overlay an existing image on top of live view, or vice versa?
Example use case: Suppose you have an illustration showing a street and some surroundings. Now, you want to add a car. The car's perspective, naturally, should exactly match the street in the illustration. So you import the illustration as image into the camera, and have it displayed when shooting.
Note that I don't earn a Canon camera (yet).
