Join curves of an image, identify which curves have to be joined

There is an image of say the surface of a metal. So, it has a lot of curves on it. There are also some discontinuous curves. So, I a supposed to join such curves.

I have been working on this and also came up with a solution in which I have to manually select two curves that are supposed to be joined. Then those curves are joined.

Since, there are many such discontinuous curves to be joined, I want to automotise it. Specifically, I don't want to manually select curves. Is there any way to proceed.

I have attached an image below to give a gist. Red circles shows the curves I want to join. Blue circles shows that they are joined. But my problem is that each time the user has t select the two curves that are supposed to be joined. Please do help.

Answer 1

[Image Analyst]

I'm attaching two edge linking demos. Adapt as needed - sorry I can't do that for you (not enough time).

[Muskan Agrawal]

Sorry but could you just give me a hint that how can they be used.

I tried the above two codes, couldn't get anything relevant.

I would like to know why would you suggest the above two codes, and just a hint that how I can use it.

[Image Analyst]

They basically find endpoints, then if a pair of endpoints are closer together than a specified distance, it connects those endpoints with a line. Isn't that what you want to do?

[Muskan Agrawal]

Yeah! I tried doing but its not fulfilling the result which I want. Actually not all curves are supposed to be joined. Also the curves in the above image are so close, it isn't working out the way I want.

Pls try the code which I am attaching. May be I ll be able to make myself clearer, what kind of result I want.