I spent much of the 1980s writing custom image processing software in FORTRAN for some of the early digital sensors. It was a lot of fun. Also used some of the early image displays, the Gould Deanza IP8500 and RAMTEK 9465 (I forget). Did computer animation with a Panasonic TQ2026 Laser Disk, using a custom made graphics card in a PC, ~1988.
This is an example of the work that my wife and I did.