• Boris FX

  Difference Keying?

  Posted by Jaeson Koszarsky on November 12, 2009 at 4:01 pm

  Hello,

  I’m using BorisRED v4 with Media100HD.

  The object removal plug-in (motion key) looks interesting. I haven’t actually tried it yet. But I’m wondering if the reverse can be accomplished. Rather than removing a moving object from a static background, can you key out the static background and keep the moving object?

  Thanks,
  Jaeson

  Steve Pankow replied 16 years, 5 months ago 4 Members · 3 Replies
• 3 Replies

• 

  Peter Mcauley

  November 12, 2009 at 5:08 pm

  Hi Jaeson,

  The BCC Motion Key filter is capable of removing foreground objects from a background but the filter has no way to isolate the foreground object and composite that on a separate background. It’s something that has been discussed internally in the past though and we may offer that in a future revision of BCC.

  Cheers,

  Peter.
• 

  Boris Yamnitsky

  November 12, 2009 at 5:10 pm

  Although Motion Key filter was not designed for this task you can try to apply a difference key with the original. I expect you may see problems with the edges but you can further refine the edges with a matte choker. In other words you’ll have to experiment. Good Luck.

  Boris Yamnitsky
  BorisFX
• 

  Steve Pankow

  November 12, 2009 at 8:52 pm

  Or BorisFX could just buy out Imagineer Systems 😉

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