Design and implement a method to $($in MATLAB$)$

Extract the periodic pattern that is $($vaguely$)$ visible in the image shown below.

Remove the impact of non$-$uniform illumination.

Your code must read the provided input image from the current directory and display

a$)$ Frequency$-$domain filter that was used to extract the pattern

b$)$ Extracted periodic pattern

c$)$ Uniformly illuminated input image