[FFmpeg-user] How to brighten part of a dark video?
barsnick at gmx.net
Fri Sep 18 14:25:27 CEST 2015
On Fri, Sep 18, 2015 at 14:21:26 +0200, Gilles wrote:
> For the benefit of other newbies happening on this thread later,
> here's a working exemple to 1) split the video in two parts, 2) make
> the dark part brighter and the bright part darker, and 3) join the two
> into a single video:
Thanks for following up with your complete result.
> ffmpeg -i input.mp4 -c:v libx264 -filter_complex "split=2[v1][v2];
> [darkpart][brightpart]overlay=x=520:y=0[v]" -map "[v]" -c:a copy -f
> mp4 output.mp4
Small hint: You probably want the same x, y coordinates for the overlay
as you used for the crop, so as to place the corrected part at exactly
the same place. ;-)
More information about the ffmpeg-user