The stabilize*.m series of files represent the core code - this is the
function you would want to run.

stabilize4.m is probably the best of the bunch.  stabilize5.m was a
(second) attempt at a full affine transformation between frames, but
it has issues with unrestrained skew building up.  Its registration
between frames also seems to suffer, making me wonder if we either
don't have enough interest points to do a good estimation of the extra
parameters, and/or if i've broken some of the math.  (I actually lean
towards the former, since I was staring at the math for a long
time... but there is that whole skew problem... *shrug*)
