[Image-SIG] feature detection/location in images

[Kevin Cazabon]

Hey everyone - does anyone have good experience in locating features  
in an image?  PilPlus used to have a "ImageCrackCode" module, but I've  
never used it or even seen it (it says no longer available).

I don't need to find _specific_ features, but need to find a small set  
of distinct features consistently in similar images (for aligning them  
together).  I can brute-force this with min/max values/etc, but was  
hoping for some help on something more elegant and efficient.  Any  
pointers would be appreciated, thanks!

Kevin.