Hi - this sounds strange - maybe there's a strange interaction with the
scl_inter and scl_slope settings in the header? FSL deals with these by
initially resetting these to the defaults and scaling the actual data
accordingly...
Cheers, Steve.
On Mon, 10 Oct 2005, Darren G wrote:
> Hi:
>
> I tried using BET for skull stripping BOLD images and it produced an image
> that was skull stripped but the voxels values were around 10^8. The original
> values were around ~400-500. The image was generated in spm5b and so is a
> nifti hdr+img. FSLview seems to read the original image correctly with the
> proper voxel values, and it also shows the skull stripped image with the
> wrong values. However, BET produces correct values when skull stripping a T1.
>
> Thanks,
> Darren
>
--
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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