Guide Video Duplicate Cleaner

🎯 Quick Tips

Useful recommendations for working efficiently with the program.

🚀 For a quick start:

  1. Select a small folder and the pHash algorithm with 30 frames.
  2. Set the similarity threshold to 0.7.
  3. Start the scan and look at the results.
  4. Mark 1‑2 files and delete them (to the recycle bin) to understand the process.

📊 For accurate duplicate search:

  1. Use pHash with 50‑100 frames and a neighborhood of 3‑5.
  2. Keep the threshold at 0.7.
  3. Scan one large folder at a time.
  4. Add system folders (Windows, Program Files) to the ignore list.

🧠 For maximum accuracy (finding modified versions):

  1. Use CNN+Faiss with 100 frames and a neighborhood of 3.
  2. Set the threshold to 0.85.
  3. The resnet18 model – a good balance of speed and accuracy.
  4. Be prepared for a longer scan.

⚙️ Speeding up the scan:

  • Enable pair pre‑filtering (⚙️ button) – this will discard obviously unsuitable pairs by size/duration/resolution.
  • Reduce the number of frames (e.g., to 30 for pHash or 50 for CNN).
  • Disable crop black borders – this will speed up frame extraction.
  • Use the ignore list for folders you don’t want to scan.
  • Do not add too many folders at once – it is better to scan them one by one.

🗂️ Workflow organisation:

  • Use search in the results to quickly find a file by name.
  • Pagination helps avoid overloading the interface when there are many pairs.
  • Before bulk deletion view the pair in synchronous mode or compare in detail.

🔍 How to choose which file to keep:

  1. Keep the file with the larger size – this usually means higher quality.
  2. Compare resolution (higher is better).
  3. Take duration into account – a fuller version or uncropped one.
  4. Pay attention to FPS – for the same content, higher FPS may mean smoother playback.
  5. The file name can also hint at which version is original.

💾 Saving space:

Average savings after cleanup:

  • Home video collection: 10‑30%.
  • "Downloads" folder: 20‑50% (many repeated videos).
  • Organised library: 5‑15%.

💡 Golden rule: Better to double‑check than to delete something you need. Use synchronous view for visual confirmation.