nanshe/nanshe/registration.py: Don't need to drop frame values as that is dropped regardless.
nanshe/nanshe/registration.py: Don't need to drop frame values as that is dropped regardless.

DudLab/nanshe,nanshe-org/nanshe,jakirkham/nanshe,nanshe-org/nanshe,jakirkham/nanshe,DudLab/nanshe