Grabcut

Comparison between watershed and grabcut

Comparison between watershed and grabcut
  1. What is GrabCut segmentation?
  2. How do I use GrabCut in Opencv?

What is GrabCut segmentation?

GrabCut is an image segmentation method based on graph cuts. Starting with a user-specified bounding box around the object to be segmented, the algorithm estimates the color distribution of the target object and that of the background using a Gaussian mixture model.

How do I use GrabCut in Opencv?

Just mark the rectangle area in mask image with 2-pixel or 3-pixel (probable background/foreground). Then mark our sure_foreground with 1-pixel as we did in second example. Then directly apply the grabCut function with mask mode.

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