Method to subdivide image into multiple images?

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I am looking to see if openCV has any built in functionality for creating a(for example) 10x10 grid across a sub-region of the image, and then doing the same thing across the whole image so each section can be processed individually in a list.

Essentially turning this single image:

Into an array of smaller images:

I haven't been able to find this anywhere in openCV's libraries, I feel like it should be there. If not, then I was thinking of implementing my own solution.