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Re: Selecting people only from a video clip by their motion?

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Re: Selecting people only from a video clip by their motion?
by billlee on Oct 10, 2007 at 1:42:26 am

Yes. Sort of. Maybe. And sometimes Not.

The Difference Key is the filter you would have to use here. This filter allows you to mask out any pixels in a frame that are the same as in a reference image (your "Clean Plate"). You find frame that has none of the moving people in it, save it as a still picture, re-import it as your clean plate. You add the Difference Key to your video, open the filters tab and drop your clean plate into the image well. Adjust the threshold and tolerance and it all works, except....

Where it doesn't work:


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