[FFmpeg-user] Brighten dark video before reducing size?

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Oct 6 13:24:46 CEST 2014

Gilles <codecomplete <at> free.fr> writes:

> c:\>ffmpeg -ss 00:05:00 -t 20 -i input.mp4 
> -vf lutyuv=y=val*1.3 scale=640:-1

I suspect this should be:
-vf lutyuv=y=val*1.3,scale=640:-1

But I suggest you first try without scaling to 
find the right syntax to brighten your video.

Carl Eugen

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