How extract lines from a messy background

Question

Given the next canny edge result image:

I'm trying to extract the selected lines:

I did try several methods without success. For ex. I tried morphological operations but didn't work well because some times the lines are in angle or they are not completely vertical or horizontal...

I wonder if there's a method or if it is possible to extract them properly.

Thanks.

Answer 1

If you want to identify the longest lines try with finding contou r and filter by its length.

You will get only the long connected lines irrespective of angle.

if you want that to match with line then try houghlines Hope it helps.