You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: spm_dartel_norm.m
    path of file: ./repos/spm12/toolbox/DARTEL
    
    the code of the file until where you have to start completion: function out = spm_dartel_norm(job)

    
function out = spm_dartel_norm(job)
% Warp individuals to match template
% FORMAT spm_dartel_norm(job)
% job.flowfields - Flow-fields
% job.images     - Image to warp
% job.interp     - Interpolation method
% job.K          - 2^K timesteps are used
%_______________________________________________________________________
% Copyright (C) 2008 Wellcome Trust Centre for Neuroimaging

% John Ashburner
% $Id: spm_dartel_norm.m 5668 2013-10-03 18:34:18Z guillaume $


PU = job.flowfields;
PI = job.images;
jactransf = job.jactransf;
intrp    = job.interp;
K        = job.K;

for i=1:numel(PU),
    drawnow;
    NU = nifti(PU{i});
    [pth,nam,ext,num] = spm_fileparts(NU.dat.fname);
    fprintf('%s: ',nam);
    if jactransf,
        [y,dt] = spm_dartel_integrate(NU.dat,[1 0], K);
        dt     = max(dt,eps);
        if jactransf~=1,
            dt = dt.^jactransf;
        end