Auto Fill Duplicate Frames

Auto-Fill Duplicate Frames - Detect duplicate frames and fill with interpolated replacements

How It Works

1. Set Input PNG Files Path to a path on this server for the PNG files being deduplicated
2. Set Output PNG Files Path to a path on this server to store the deduplicated PNG files
   • Output PNG File Path can be left blank to use the default folder
   • Tip: The default folder is set by the config.directories.output_deduplication setting
3. Set Detect Threshold to specify the sensitivity to frame differences
   • A lower value finds fewer duplicates; a higher value finds more
   • This value requires experimentation. See More Details below.
4. Set Maximum Duplicates Per Group to limit consecutive found duplicate frames
   • This can help to find a suitable upper limit for Detect Threshold
   • Values:
     • Set to 0 to not limit the number of consecutive duplicates
     • Set to 1 to prevent duplicates altogether
     • Set to any other value to limit the consecutive duplicates
   • Tip: in most cases, actual duplicates will be limited to several frames only
5. Set Search Precision to the depth of search needed for accuracy
   • High precision yields precise frame timing, but takes a long time
   • Less precision is faster, with possible imprecise frame timing
6. Click Deduplicate Frames
7. The Details box shows the result of the operation, or any errors encountered
8. On completion, a report .txt file is written to the output path with details of the auto-filling

Important

• This process could be slow, perhaps many hours long!
• Progress is shown in the console using a standard progress bar
• The browser window does NOT need to be left open
• ffmpeg.exe must be available on the system path
• Resequence Files can be used to renumber a PNG sequence
• The Video Preview tab on the Video Blender page can be used to watch a preview video of a set of PNG files
• The values for the Threshold and Precision sliders can be changed in the config.yaml file section deduplicate_settings

More Details

• The FFmpeg mpdecimate video filter is used to detect and remove duplicates
  • The hi and lo mpdecimate parameters are set to the specified theshold
  • the frac mpdecimate parameter is set to 1
• Example: a 30 FPS video with 24 FPS real frames (20% duplicated frames)
  • With Threshold set to the minimum 0, 1 frame was removed
  • When set to maximum 25000, all frames except 1 were removed
  • When set to the default 2500, 20% of the frames were removed