ever needed to find out the rigid correlation between two images very quickly (off-placement in shift and turn), which is called "image registration" ? I wrote an open source software for this task called "Limereg" (available by apt-get install limereg in Debian unstable). It is optimized for embedded systems with low ram and fuzzy/arbitrary image data like in medical imaging. If anyone needs pylon-support in Limereg, toss me an e-mail and I'll see what I can do. Would be fun to integrate.