Turning potentially ruined video footage into something very much useable, like magic the dark video is back to normal, vibrant with a little bit of extra noise.
I had underxposed drone footage due to the phone screen brightness not being enough to see that i had the EV set to negative max. The footage was bad:
Using FFmpeg gamma and saturation filter i went through some values to find a sweet spot.
In the end it was
Here are comparisons from the original underexposed footage to the FFmpeg corrected
Here are screen shots starting at gamma 1.2 through to 2