Midterm Consplosion!

I've learned a ton in the process of doing this midterm, but ultimately, i'm not happy with it. Not happy at all. I tried to build my own motion tracker from scratch, using the changes in px values to create an alpha mask that would let me put effects into the static portions of an image while letting the moving portions of an image come through whole. Its not working. I'm at a loss. This sucks.