Machine vision is advancing rapidly. This year the imageNet machine vision challenge winner got 6.7% top-5 classification error. 2013 was 11%, 2012 was 15%. And

Machine vision is advancing rapidly. This year the imageNet machine vision challenge winner got 6.7% top-5 classification error. 2013 was 11%, 2012 was 15%. And since there is an upper limit of 0% and each percentage point is exponentially harder than the last, this is actually better than exponential. It's also estimated to be about human level, at least on that specific competition. And that required a human to practice and spend lots of time looking for similar images to match the image.