Intersection area of 2 polygons in openCV

Question

I have the contours of 2 polygons (as vector of cv::Point2d).

I would like to calculate the area of intersection between them

What is the easiest way to get it?

Thank you very much!

Ron

Answer 1

You can find intersection polygon wth Clipper library

//create clipper polygons from your points
c.AddPolygons(subj, ptSubject);
c.AddPolygons(clip, ptClip);
c.Execute(ctIntersection, solution, pftNonZero, pftNonZero);

then calc area of this polygon