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 Best regards -- Oliver _______________________________________________ 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".
