Nice! I bought a Pi Camera about a month ago and haven't had the time to really get into it. This is exactly what I want to do for my first project.
When I have more time I want to play with OpenCV and do some facial recognition. Though, I don't know if I will ever have enough time for that.
I have wanted to learn OpenCV for a long time. It is a pretty powerful package, but imagine will take some time to learn. Thank you for the comment.
PJM