I would like to know how can I use Freeview or any tool of FreeSurfer to visualise preprocessed DTI files from a database. They are in a standard output like it appears in Tracula output page of FreeSurfer wiki. It shouldn’t be a problem to use these files in FreeSurfer. Everything (details of output and preprocessing stages) is explained in this website. https://www.nitrc.org/plugins/mwiki/index.php/neurobureau:INDIpreproc

Thanks for your help!