I input dwi images with b=0,0.8,1.5 and 2.5, where b0 has one direction and the other b values have 18 directions. There are discontinuous squares on the Kmean maps of the output result. May I ask why this is caused? I checked the original image, and there were no artifacts of similar shapes.
In addition, I found that part of images on Kmean Map were missing. I attached the comparison images. Attachment 1 is the Kmean map, and Attachment 2 is the B0 image of the input data.