How do I split a contour?

Santhosh1
318 ●11 ●15 ●37

Example below shows a single detected contour. We can see that this contour can be split into two contour(red line separating the two).

First one the top curve which can be seen to represent a separate object from the bottom curve.

image description

How can I split this single contour into two separate contours at the point where the red line passes through the contour?

1 answer

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VxW
709 ●1 ●9

Hi,

calculate the convex hull
calculate for each point the normal vector
based on the normal vector, calculate the distances for each point to convex hull in both directions
split there, where the distances between hull and point is the biggest (in both directions?)

Hope it helps!