Tweak to KLT region tracker test
Tweak to KLT region tracker test

KLT is usually used to track relatively small
motions, and in this case motion almost equals
to half window size. This confuses math and
leads to not so much expected result.

Further, not actually sure this is nice idea
to use KLT in such synthetic case.

petertsoi/libmv,SoylentGraham/libmv,rgkoo/libmv-blender,petertsoi/libmv,petertsoi/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,SoylentGraham/libmv,petertsoi/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,rgkoo/libmv-blender,rgkoo/libmv-blender