How would you align pictures?

Question

I have a bunch of gif files which would be much more useful as animation. Unfortunately, they are not exactly the same size, and main features (country borders) shift a bit from picture to picture.

NASA Vision Workbench seems like solution to my problem, but I would love to get something a bit simpler.

Answer 1

This isn't a real answer to your question, but the technique is called "registration". You may have better luck with a google search on "image registration".