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Bayesian Matting

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Multiple Choice

In Bayesian Matting, what is the role of the alpha matte?

  1. It represents the probability of a pixel belonging to the foreground.
  2. It represents the probability of a pixel belonging to the background.
  3. It represents the probability of a pixel belonging to either the foreground or the background.
  4. It represents the probability of a pixel being occluded.