MATLAB: How to find edges in an image with slightly noisy/uneven sides

Question

How do I find edges in an image with slightly noisy/uneven sides? An image that was generated by scanning in a shape has slightly distorted edges, but I would like to 'straighten' them in order to better analyze the shape.

Answer 1

One method to do this is to extract line segments based on the Hough transform. The function 'houghlines' and the example in the documentation show how to do this:

https://www.mathworks.com/help/images/ref/houghlines.html