Finding contour points in emgucv

Question

I am working with emguCV for finding contours essential points then saving this point in a file and user redraw this shape in future. so, my goal is this image:

exam

Answer 1

In your code you have added contour approximation operation

Contour<Point> currentContour = contours.ApproxPoly(contours.Perimeter * 0.015, storage);

This contour approximation will approximate your Contour to a nearest polygon & so your actual points got shifted. If you want to reproduce the same image you need not to do any approximation.

Refer this thread.