Classic exercises for computer vision / image processing?

Question

For a mentoring project, I am looking for an online repository of classic computer vision exercises, similar to Project Euler, but geared towards image processing problems that could be solved in MATLAB or OpenCV.

Anyone have any ideas?

Answer 1

There is no such a place for standard problems and test data for them in CV.

Here is one for Object Recognition.

Answer 2

I seem to remember hackthissite having a few image-related steganography challenges (the site is down atm).

Not exactly the classics (you might have to take a CV class for that), but definitely fun.