FYI, the reason that camera is "cheap" is because it doesn't have any image processing capabilities. The Blackfin, although much more costly, has a powerful built in programmable processor to do all the 'heavy lifting'. Image processing/vision is very much processor intensive. Although the Axon can do it, it'll be very slow in comparison, perhaps just one or two frames per second (depending on the algorithm and image size). If your robot is really slow then no problem, but for even line following at normal speeds you'd need more like 5 or 10 fps at least . . .