问题
Images are of the same object taken at different time intervals. Software solutions - to be implemented in hardware. High rate of performance most important in hardware implementation
回答1:
I believe Perceptual Diff does what you want...
http://pdiff.sourceforge.net/
回答2:
Despite the fact the question seems to be after hardware and some kind of technique rather than a tool, for the sake of posterity it's worth mentioning that you can do this with Beyond Compare plugins.
Not free but worth the money in my humble opinion: http://www.scootersoftware.com
来源：https://stackoverflow.com/questions/2054026/comparing-two-jpeg-images-and-displaying-differences