Dear Arnold,
we would normally use convertwarp to combine several fields. How have
you been trying to do it? Is you problem that you don't get anything
at all, or that you obtain fields that don't give you good corrected
images?
Jesper
On 11 Nov 2010, at 09:22, Arnold Skimminge wrote:
> Dear fsl guys
>
> I've used fnirt to correct geometric distortions in DTI images using
> an anatomical reference image. This seems to work fine using
> applywarp.
>
> I try to write out the deformation fields using
>
> fnirtfileutils -i ... -o ... -r ... -f -a
>
> But then i cannot recreate the corrected images using my own scripts
> with these deformation fields.
>
> I want to combine the deformation fields with other deformation
> fields, such as B0 inhomogeneity corrections as well as correction for
> gradient non-linearities.
>
> Arnold Skimminge
> DRCMR
>
|