Dear Doug Im using :

mri_surf2surf --sval $PATH/image.mgh --tval $PATH/image.nii --reshape --s 
my_avg_subject --hemi lh 

 and the nii output image still seems to be a not valit image, am I missign 
something?

Gabriel



> Date: Fri, 27 May 2011 12:53:53 -0400
> From: gr...@nmr.mgh.harvard.edu
> To: gabriel...@hotmail.com
> CC: freesurfer@nmr.mgh.harvard.edu
> Subject: Re: [Freesurfer] mgh conversion
> 
> Nifti can only handle 32k elements in any dimension. This is a problem 
> for surfaces when they have upwards of 100k vertices. For our average 
> subject (fsaverage and derivatives), this problem is solved by reshaping 
> the number of vertices to be 27307x6=163842. If you are working with 
> fsaverage, this should happen automatically (but might not for older FS 
> versions). You can try converting to nifti using mri_surf2surf which 
> offers a "--reshape" option.
> 
> doug
> 
> Gabriel Go.Es. wrote:
> > Dear freesurfers
> >
> > I want to convert an .mgh image to NIfTY format, but even when the 
> > conversion using "mri_convert" seems to be ok, when I try to open the 
> > nii, an error message appears "image doesn't appear to be a valid 2D 
> > or 3D image", there is any other way to convert an mgh image to nii?
> >
> > In other cases when I tryed to convert other mgh's cointaining 
> > clusters extracted with matlab but saved with the same matrix header 
> > as "sig.mgh", FS says that nrows in volume exceeds 32768, and does not 
> > make the conversion?
> > Any ideas?
> >
> > Thanks in advanced,
> > Gabriel.
> > ------------------------------------------------------------------------
> >
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> 
> -- 
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358 
> Fax: 617-726-7422
> 
> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
> 
> 
> 
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