Identical results using optical flow: dis_flow and sparse_to_dense

[EwoutBergsma]

When running the following commands:
./LaBGen-OF-cli -i input/ -o output/dis_flow.png -a dis_flow -p 1 -n 3 -s 10 -t 2 -r record/dis_flow.avi 1
./LaBGen-OF-cli -i input/ -o output/sparse_to_dense.png -a sparse_to_dense -p 1 -n 6 -s 10 -t 3 -r record/sparse_to_dense.avi 1

The resulting output image is identical if the set of input images were identical too. I have tested this on a large dataset, with all the optical flow implementations provided in this repository. Behavior is only observed between dis_flow and sparse_to_dense.

Note, in the recording it is observed that the vector field, optical flow (hsv) and segmentation map are vastly different. It are merely the output images that are identical.