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Lines recognition in opencv

Hello everybody.

I have a problem where I need to recognize some lines inside a bmp image.

I am able to get some matches from the image and I am trying to reject the bad matches.

For example I have to reject this match:

image description

while I have to accept this match:

image description

I am not looking for the solution, I just want to ask if there is or not some method to check if a set of points is an approximation of a line, or if there is some method/algorithm that can be useful to solve my problem.

Thank you for any advice ;)