Benchmarking per image size

[DiTo97]

Hi @mohamadmansourX,

Have you done any benchmarking of SauvolaNet runtimes against different image sizes?

I tried to binarize some high-res (4k) document images and the (CPU-only) runtimes were around 27 seconds.

I will also share the link to the same issue asked in the original SauvolaNet repo.