Segmenting an image into homogenous compartments

Operating system: Ubuntu 22.04
Slicer version: 5.2.2
Hello All.
I have an MRI scan that I need to segment into N homogenous compartments for later reconstruction. The challenge here is that it’s not whatever organ, and the rest is background, but it has to be compartments.
Is there a way to do that with slicer?
Here is a link to the file via google drive:

This is a follow-up on discussion on Segmenting an image into homogenous compartments - #4 by ZInoviy - Image Analysis - Forum

@Zinoviy_Weinstein You have shared a single slice. Do you need to do 2D image segmentation? What is the clinical goal?

Yes. This is a 2D 1H anatomical image that needs to be segmented to use in later image reconstruction of “crappier” images.