Didn't really think about the name until I read your suggestion.
I have to say that, "Photo Pus," does sound like something
you'd have to get a prescription for :)
I see the idea of this name like the Octopu which has more tentacles and can do many things in the same time.
So...this name, PhotoPus, gives one the idea that it can alter different images in one action only, not being led to do multiple actions for the same thing.