Second Release (v1.0.81). With Perspective Correction

As used for latest data analyses for academic paper (31.5.21). With Perspective Correction: Objects near to the camera appear larger than objects in the background. The raw count of moving pixels will therefore be substantially higher (~10x - 1000x) for similar movements in the foreground versus the background. A perfect perspective correction would use vanishing points and lens distortions to fully re-project the scene to remove perspective. This is beyond the scope of this work. We perform a simple perspective correction by scaling the movement score of each row of the image by the square of the percentage of the row’s fraction from the bottom. Ie. movement-score * (rows - row)2/rows.

First stable public release

1.0.0.75

Fix _mask load when filename (not full path) provided as cmd-line arg