[FFmpeg-user] amplify filter, threshold option

Paul B Mahol onemda at gmail.com
Sun Feb 17 23:12:56 EET 2019

On 2/17/19, Michael Koch <astroelectronic at t-online.de> wrote:
> The threshold option in the "amplify" filter suppresses large
> differences. In my opinion it would make more sense to have a (second)
> threshold option for suppressing small differences, for example noise. I
> mean alter the source pixel only if the difference is greater than the
> threshold value.

The sole point of filter is usage in forensics to amplify small pixel changes in
static video. But it could be added to filter, sure it would not hurt
to extend its funcionality.

> Michael
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".

More information about the ffmpeg-user mailing list