The Expression Problem is a non-problem, if you can modify all your codebase. Just change the image processing library. You probably want to static type system

The Expression Problem is a non-problem, if you can modify all your codebase. Just change the image processing library. You probably want to static type system so you quickly find all places, where you have to change something. The Expression Problem is ugly, if you cannot change the image processing library for some reason.