image_based_orientation 'morphed' image same as 'abs-diff'

[fieldbio]

When using image_based_orientation to save movies it looks like the 'morphed' image (row 1, column 4) is the same as the 'abs_diff' image (row 1, column 3).

Also, when using the parameter --final-thresh (at least for the hummingbirds) this doesn't have an affect unless it's cranked up to >100. The default value is 7, which doesn't seem to have much of an effect.