[FFmpeg-user] ffmpeg noise command: How is noise level defined

[Lou]

On Mon, 21 Oct 2013 22:31:52 -0500
Armin Kappeler <arminkappeler2011 at u.northwestern.edu> wrote:

> I am using ffmpeg to add noise to my video by using the "noise" command
> (Section 9.53 in user documentation). The noise level can be choosen
> between 0 and 100, but how is the noise level calculated/defined? (PSNR,
> variance, deviation etc.)

Please include your ffmpeg command and the complete ffmpeg console
output so I have a better idea of what you're referring to.