Hi - I think MJ already replied to this?
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington,
Oxford. OX3 9 DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask]
http://www.fmrib.ox.ac.uk/~steve
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On 2 Oct 2011, at 04:00, "Rolf A. Heckemann" <[log in to unmask]> wrote:
> I still haven't found a solution for the issue of fast not working as
> expected, so I'm reposting this:
>
> I am trying to obtain a two-class tissue segmentation of the brain
> matter of an image. I have a bias-corrected full image (full.nii) and
> a mask for the brain portion (excluding CSF, mask.nii). So I do
>
> fslmaths full -mas mask masked
> fast -n 2 -g -N masked
>
> I get a grey matter probability map in masked_pve_0 as expected. But
> the white matter portion, masked_pve_1, is a float-type image with
> only two values, 0 and 1. I would have expected masked_pve_1 to
> contain intermediate values, just as masked_pve_0 does.
>
> I would much appreciate your help.
>
> Regards
>
> Rolf
>
>
> --
> Rolf A Heckemann, MD PhD
> Médecin chercheur
> Fondation Neurodis
> CERMEP - Imagerie du Vivant
> Hôpital Neurologique Pierre Wertheimer
> 59 Boulevard Pinel
> 69003 Lyon
> France
>
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