Convert .v16 data to nifti using Neuroelf.

v16_to_nii.m

% Convert VMR files with uint16 precision (.v16) using neuroelf.
%
% v16 files are better than vmr files for nifti conversion because
% because the intensity values are not limited to the small range of
% 0 to 255 integers.
%
% http://neuroelf.net/

[fileName, pathName] = uigetfile('.v16');
vmr = xff(fullfile(pathName, fileName));
outDir = uigetdir();
vmr.ExportNifti(fullfile(outDir, [fileName(1:end-4),'.nii']) );
disp('Done.')