Hi again Anastasia,
this is simply an interpolation issue. Just enter the -n option in tbss_deproject if you want to keep the mask binarised.
Cheers,
Gwenaelle
--- En date de : Lun 28.7.08, Anastasia Ford <[log in to unmask]> a écrit :
> De: Anastasia Ford <[log in to unmask]>
> Objet: [FSL] TBSS deproject binary file
> À: [log in to unmask]
> Date: Lundi 28 Juillet 2008, 20h52
> Hello,
>
> I am trying to deproject a binary mask made from voxels
> that show
> statistically significant differences that are presents in
> all of the
> subjects. I made a binary mask of these voxels and I am
> using tbss_deproject
> 3 to project this mask back to the subjects original FA
> maps. The outcome of
> this back projection is not a binary, rather is is a range
> of values ranging
> from 0 to 12 (I have 12 subjects). The original mask values
> are 0 and 12,
> the grot files are binaries as well. Do you have any
> suggestions about how
> to ensure that the resulting back projection of a binary
> will be a binary?
>
> Sincerely,
>
> Anastasia
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