Hi, you can easily do this using the -binv option in fslmaths

On Mon, Apr 29, 2013 at 3:33 PM, Amandine Pelletier
<[log in to unmask]> wrote:
> Dear FSL experts,
>
> Using LST toolbox, I have performed the  assessment of white matter hyperintensities volumes,
>
> Finally, I obtained a mask of white matter hyperintensities for each subject in native space,
>
> Using the command line fslmeants, I have extracted the FA values in the lesion masks,
>
> Now, I would like to extract the FA values outside the lesions (in normal appearing white matter),
>
> I need to reverse my lesion masks > that is to say I would like to obtain a mask with a value of 1 outside the mask and with a value of 0 inside the mask,
>
> Does anyone can help me ?
>
> Thanks for your time and your help,
>
> Amandine



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Niels Bergsland
Integration Director
Buffalo Neuroimaging Analysis Center
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