How to draw polygons with polylines in OpenCV

This article introduces the relevant knowledge of "how to draw polygons with polylines in OpenCV". In the operation of practical cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

When OpenCV carries on the image processing, sometimes needs to mark some polygonal objects, then needs to use the function polylines to draw it. First, let's take a look at the diagram drawn by this function polylines, as follows:

To apply this function in depth, we have to study the parameters of this function before we can use it flexibly, so take a look at the parameters of this function:

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