SpotdiffPlayer created and to a point where I can start prototyping algorithms. ObjectFinder renamed to ImageUtils to better encapsulate it's expanding role.
Spotdiff algorithm is almost there, I just need to implement a blob finding algorithm.
Spotdiff algorithm seems to be working on the test image. Had to add a blob-finder class which finds blobs of 1's in binary data.
Added back the offset from when I cropped the images in SpotdiffPlayer. Only seems to work on the test image, so there are kinks to work out.