Hi @amitjc,
In addition to @rsmith’s answer, have a look at Fig 5.1 in this thread.
If you look at the anterior (or posterior) part of the corpus callosum, you will see that the CSD lobes don’t point in the right direction. They don’t “flow” along the white matter tract as you would expect. If you were to flip the sign of the y-axis, in that case, it would probably solve the problem.
If you’re not sure how to visualize the CSD file you’ve created, go to the “ODF display” tool in mrview, and click on the left-most option in the menu that opens. You can see an example in this tutorial video.
Hope this helps,
roey