A little on self-organizing maps and the machine vision library OpenCV..
Excellent tutorials on Self-Organizing Map theory -
The Self-Organized Gene (Part 1)
The Self-Organized Gene (Part 2)
Intel's Open Computer Vision Library
Recently took a vacation and spent some time in Key West, which was awesome. When we got home I did a little yard work and played around with OpenCV, trivially writing a program to automatically rotate photos by detecting faces and their orientation. Now I'm hooked.