try:

mri_convert orig.mgz -rl rawavg.mgz orig.nii

On Tue, 2009-05-26 at 18:10 -0700, Flavio Seixas wrote:
> The native data has (0.449219, 0.449219, 0.45) mm size and (512, 512,
> 356) voxels. The orig.mgz has (256, 256, 256) voxels. I would like to
> transform orig.mgz back to native data coordinates.
>
> Best Regards,
> Flavio.
>
>
> --- On Tue, 5/26/09, Bruce Fischl <fischl@nmr.mgh.harvard.edu> wrote:
>
>    From: Bruce Fischl <fischl@nmr.mgh.harvard.edu>
>    Subject: Re: Transform orig.mgz image to native space
>    To: "Flavio Seixas" <flseixas@yahoo.com.br>
>    Cc: freesurfer@nmr.mgh.harvard.edu, tosa@nmr.mgh.harvard.edu,
>    greve@nmr.mgh.harvard.edu
>    Date: Tuesday, May 26, 2009, 5:56 PM
>
>    the data should already be in the native space, not talairach.
>
>    cheers,
>    Bruce
>
>    On Tue, 26 May 2009, Flavio Seixas wrote:
>
>    > Hi Hii,
>    >
>    > I'm beginner Freesurfer user. I segmented brain subcortical
>    structures using Freesurfer (recon-all). The process was
>    concluded ok. How could I convert aseg.mgz and orig.mgz back
>    to native space? I've tried "mri_convert orig.mgz orig.nii -ot
>    nii --apply_inverse_transform transforms/talairach.xfm", but
>    didn't work. Anyone could help me? I would appreciate any
>    suggestion.
>    >
>    > Thank you,
>    > Flávio.
>    >
>    >
>    >
>    >
>    >
>    >
>
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