On Wed, 7 Aug 2024 at 10:56, Oliver Fromme <oli...@fromme.com> wrote: > > Rob Hallam wrote: > > I'd like to programmatically detect the 'busiest' parts of a video- ie > > the most visually active areas. I am leaving audio aside for the > > purposes of considering this. > > > > I figured it might be possible by looking at one / more of: > > [...] > > - frame differences -- count pixels/blocks which differ, average over > > a time segment > > I think you should be able ot use the "scdet" filter (scdet = scene > change detection) for that. If you set a low threshold, every frame > is regarded as a scene change when there is sufficient "activity". > > The filter produces log messages that include a "score" (0 - 100) for > each frame. I guess that score is what you're looking for. > > Documentation: > https://ffmpeg.org//ffmpeg-filters.html#scdet-1
Ooh, this looks like a promising starting point, I'll give it a try. Thanks Oliver! Cheers, Rob _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
