[GLOBAL]
fixed=gauss-1.mha
moving=gauss-2.mha
vf_out=plm-reg-itk-demons-diff-vf.mha
img_out=plm-reg-itk-demons-diff-img.mha

[STAGE]
xform=vf
impl=itk
optim=demons
optim_subtype=diffeomorphic
demons_gradient_type=symmetric
demons_std_update_field=1.5
demons_std_deformation_field=1.5
demons_smooth_deformation_field=1
demons_smooth_update_field=1
demons_step_length=2;

max_its=5
