There was no real practical application. I don't have the money to run a huge server farm serving hundreds of thousands of pictures to actually make it viable.

There was no real practical application. I don't have the money to run a huge server farm serving hundreds of thousands of pictures to actually make it viable. It was mostly an experiment of me learning how to work with OpenCV. I had no idea Bing had something similar. That's very cool. At least it shows I'm not completely bonkers.