Here you see the 1980's technology! No Windows! Three framestore boards to capture RGB separately. A Force Systems 68000 running at 8MHz with 128k of RAM. But with my hardware (sticking out on the left) it did 25 frames a second or around 110 million LUT operations a second. The CPU itself could take 20s per frame. Don't forget all this was 1983-7!
This is my demo video of the system in action. (large MPEG)
You can see a local TV news item on my PhD research - here -