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How to mask out spot on floor

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31 Aug 2016 13:35 #79538 by MsJustine
Hi All

I have almost finished a project, there is 1 scene where the talent stands, his position to stand is marked on the floor, and I cannot find a way to "mask" it out so it is not seen after applying chroma-key.

I have tried cropping, but the crop cuts off his feet, it is on the floor midway between the shoes, grrrh!!!




Justine
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31 Aug 2016 14:32 #79543 by Karsten Schlüter

  1. double the lane = drag'n shift-up while holding alt (or opt)
  2. crop top lane to a little spot BESIDE the marker
  3. transform/shift top lane over marker
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31 Aug 2016 14:34 #79544 by Scott Markowitz
Is the shot on a tripod?

Here's the first approach I would take.

1. Duplicate the same shot as a layer above the original shot.
2. Pick a frame where the lighting is most representative of the entire shot, and turn that into a freeze frame
3. retime the freeze frame to last the entire duration of the original shot, and trim away any of the remaining part of the shot.
4. adda "Draw mask" effect to the freeze frame clip, and draw a rough shape around a CLEAN part of the frame next to the talent marker.
5. Add feathering to soften the outlines of the mask
6. Use Transform to move this tiny masked layer over the talent marker that you want to get rid of.
7. animate the position of this transform as needed to keep the object covered by your cleaned up, masked layer.

If you have Slice-X, theres a great removal plugin that allows you to track the offending little bit for a precise replacement job.

(Is it too late to ask Apple for a planar tracker to be built into FCPX 10.3?)

Cheers
Scott

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31 Aug 2016 15:05 #79548 by MsJustine
WWMD? What would Macgyver do? Simple solution, draw mask around offending object, invert key, and well Macgyver lives on...

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31 Aug 2016 20:31 #79553 by joema
Replied by joema on topic How to mask out spot on floor
You can also remove it with CoreMelt's SliceX: www.coremelt.com/videos/slicex-remove-objects.html

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