[FFmpeg-user] How to brighten part of a dark video?

[Gilles]

On Fri, 18 Sep 2015 11:36:25 +0000, Paul B Mahol <onemda at gmail.com>
wrote:
>The order of args have changed comparing to mp=eq2.

http://ffmpeg.org/ffmpeg-filters.html#eq

It'd help if the doco provided an example. Here's one:
http://superuser.com/questions/928151/ffmpeg-eq-filter-complex-contrast

Is there a tool (for Windows) that would provide the settings to avoid
having to try and find the right settings manually?

Thank you.