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How to operate area filtering ?

asked 2018-03-29 20:26:20 -0500

PengGuanjun gravatar image

I use open and close operate to deal with the original image below,but I have not removed tiny black points. How to remove these small black points through area filtering and protect the edges of my ROI? image description

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answered 2018-03-29 21:34:47 -0500

moHe gravatar image
  1. Bilateral Filter can smooth the image while preserving the edges.

  2. Use findContours to find the contours with small area, and fill them with white pixels.

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Asked: 2018-03-29 20:26:20 -0500

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Last updated: Mar 29 '18