Hello, Bruce,
Thanks a lot for your quick reply?
Could I ask what is the difference between labels.mgz and priors.mgz (or
atlas.gca#1 and atlas.gca#2).
I load both of them in tkmedit, move the mouse in the image, they all gave me
the same value.
Thanks!
Guang
> Date: Thu, 28 Jan 2010 16:51:56 -0500
> From: fis...@nmr.mgh.harvard.edu
> To: freesurfer...@hotmail.com
> CC: freesurfer@nmr.mgh.harvard.edu
> Subject: RE: [Freesurfer] how to view .gca file
>
> Hi Guang,
>
> it should be:
>
> mri_convert atlas.gca#0 means.mgz
> mri_convert atlas.gca#1 labels.mgz
> mri_convert atlas.gca#2 priors.mgz
>
> cheers,
> Bruce
>
> p.s. sorry, I don't think the gca format is documented anywhere, but you
> are welcome to the code if you want
>
> On Thu, 28 Jan 2010, Guang Zeng wrote:
>
> >
> > Hello, Bruce,
> >
> > Thanks for your reply. I still have two questions,
> >
> > 1. Does these gca files also include 9 arrays such as those template files
> > saved into .tiff file.
> > Is there any place in the WIKI explain the format of the gca files?
> >
> > What is the difference between gca#0 and gca#1?
> >
> > 2. I tried the command line you suggested,
> >
> > mri_convert atlas.gca#1 priors.mgz labels.mgz
> >
> > It gave me an error message:
> >
> > mri_convert: extra argument ("labels.mgz")
> >
> > type mri_convert -u for usage
> >
> > Thanks a lot!
> > Guang
> >
> >> Date: Thu, 29 Oct 2009 07:21:42 -0400
> >> From: fis...@nmr.mgh.harvard.edu
> >> To: freesurfer...@hotmail.com
> >> CC: freesurfer@nmr.mgh.harvard.edu
> >> Subject: Re: [Freesurfer] (no subject)
> >>
> >> you can load it in tkmedit from the file menu and probe it one voxel at a
> >> time, or you can use
> >>
> >> mri_convert atlas.gca#0 means.mgz
> >>
> >> and
> >>
> >> mri_convert atlas.gca#1 priors.mgz labels.mgz
> >>
> >> to look at the most likely label and it's mean
> >>
> >> cheers,
> >> Bruce
> >>
> >> On Thu, 29 Oct 2009, Guang Zeng
> >> wrote:
> >>
> >>>
> >>> Hi, there,
> >>>
> >>> I want to know how the FS GCA atlas looks like, is there a way to load
> >>> the FS GCA Atlas and view it using tkmedit or matlab?
> >>>
> >>> Is it possible to replace FS Atlas with our own Atlas and use it for
> >>> analysis?
> >>>
> >>> Thanks a lot!
> >>> Guang
> >>>
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