Problem:

I want to scan a 10 hour video and get a printout of timestamps where the
light levels darken by about 10 percent (2 percent if you count the letter
boxing) as a person steps in front of light source in the distance.

Any suggestions?


Story:

Someone has been dropping off trinket gifts at my apartment as a 12 days of
christmas thing.

I recorded 10 hours from sun-down to sun-up from a slit in the vent on a
cheapo webcam in black and white, no sound.

So now I have 10 hours of video... with about 2 seconds in there somewhere
with a person coming up the stairs and going back down.


I've heard of a program called "motion", but as you can imagine, googling
for examples of how one might use the code is fruitless and the man page is
tldr by about 1000 pages.

AJ ONeal

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