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Cover faces, tracked

Cover a face with blur, bar or pixelate in Fix, track it both ways from a reference frame and review the whole shot.

41 sec

Vertical version (9:16) Download MP4

Click path

  1. Fix
  2. Cover
  3. Blur, bar or pixelate
  4. Position and size
  5. Track both ways
  6. Review

Keep that face covered. The Cover tool in the cinemaOS Fix room places a blur, bar or pixelate region over a face and tracks it through the shot. This tutorial covers three faces on a moving shot.

Steps

  1. Open Cover. Open Fix, then Cover, on the selected clip. Choose blur, bar or pixelate for the treatment you need.
  2. Position and size the cover. Place the cover over the face and size it so movement stays contained. The recording uses a 28 percent overhang.
  3. Track both ways. Track forwards and backwards from the reference frame. Review the tracked region through the whole shot.
  4. Check the difficult moments. Look at turns, occlusions and the first and last frames. Adjust any point where the cover drifts or exposes the face.

Notes

  • Three face regions are tracked across 120 samples from a middle reference frame in the recording.
  • Tracking helps, but this is a workflow demonstration, not a guarantee of automatic anonymisation. A full-shot review is essential.
  • Background reading: Blur faces in video on a Mac in the Journal.

Footage: Tears of Steel, Blender Foundation, CC BY 3.0. Edited in cinemaOS for this tutorial.