Resample Modules

Resample Scalar volume should be considered just a simple utility for making the volume smaller or larger for convenience or debugging. It doesn’t support rotation or translation and may not give the origin you expect. Resample scalar/vector/DWI volume is much more sophisticated, as the name chunkily implies, handles more sophisticated volume types. Generally prefer the latter or if you only have scalar volumes, Resample Image (BRAINS). The fact that these similar but different modules exist is a historical accident because different groups were addressing similar but slightly different use cases.