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Activity Forums DaVinci Resolve Possible to select only moving pixels?

  • Possible to select only moving pixels?

    Posted by Adriano Castaldini on March 12, 2017 at 12:27 am

    Hi everyone,

    I’d like to grade separately the subject and the background. Let’s say that the background is still and the subject is moving, it should be easy to select the subject-only if there were a tool for selecting only the moving pixels (or only the still pixels). Do you know if there is something similar in Davinci Resolve?

    Thanks for your help.

    Toby Tomkins replied 9 years, 1 month ago 2 Members · 3 Replies
  • 3 Replies
  • Toby Tomkins

    March 12, 2017 at 10:54 am

    The only way I can think of is to;

    Copy the clip to v2. Go to blending mode, select difference for blending mode, apply noise reduction and tweak gain, turn B&W, export that clip as something high quality like prores4444. Delete copy of clip on v2. Use that clip as an external matte to drive a correction node on v1. You will probably have to tweak the matter to get desired results, maybe with blur etc. Good luck.

  • Adriano Castaldini

    March 12, 2017 at 3:36 pm

    Wow… Smart solution! Thanks so much Mr. Tomkins

  • Toby Tomkins

    March 14, 2017 at 9:09 am

    No worries. It was an interesting question.

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