population_template population_template/in tmp-population_template-out.mif.gz -type rigid_nonlinear -rigid_scale 0.2,0.3 -rigid_niter 20,20 -nl_scale 0.2,0.3 -nl_niter 1,1 -tempdir tmp-population_template -force 
population_template population_template/in tmp-population_template-out.mif.gz -type nonlinear -nl_scale 0.2,0.3 -nl_niter 1,1 -tempdir tmp-population_template2 -force 
