To get larger polygon from existing polygon

Question

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I want to get red polygon from black polygon in OpenCV. to get larger one from existing polygon? Is there any easy way to do it?

score 2 · Answer 1 · edited May 23 '17 at 12:30

2

What you are seeking is the offset polygon. It was addressed in an earlier question, "An algorithm for inflating/deflating (offsetting, buffering) polygons." It is not easy to compute in general, but it is well-studied.

edited May 23 '17 at 12:30

Community

answered Mar 12 '12 at 14:18

Joseph O'Rourke

1 Answers1