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How to use 2D line curvature and normals equation?

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I want to use this code for 2D line curvature to mark most concave and convex points in the edges of the image. I am applying this function for a x-ray image using MatLab R2018a.
I want to who what is meant by lines and vertices in 'function k=LineCurvature2D(Vertices,Lines)' and what are the inputs for vertices and lines?
Nayana R
Nayana R on 22 Oct 2018
Thank you for your reply.I tried that help code.But for hand example it asks for a dataset file.I can't understand how to apply this hand example for my image
KSSV on 22 Oct 2018
Attach the have to get the dataset from the image. Tell us your expectations.

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