Some more evidence that machine vision is hard

Nearly a year ago, I made a post talking about the woefully difficult task of visual processing, and it is a theme I have continued to discuss in my series on top-down visual processing, particularly the third (and most recent) instalment. Well, now it is time to take a sojourn out of the ivory tower of academic discussion (a phrase which I, of course, use ironically) and giggle at some real-life examples of failed automated vision tasks involving iPhoto's facial recognition software. The examples have all been submitted to a Flickr group where they can be perused at one's leisure.

I think this one is my favourite: