One way you can do it is to specify all the GM ROIs with --rescale Id1 Id2 ... Otherwise, you can run fscalc, eg,
fscalc mgx.ctxgm.nii.gz div `cat global.gm.dat ` -mul 100 -o mgx.ctxgm.rescaled.nii.gz On 11/20/2020 11:44 AM, Boris Rauchmann wrote: External Email - Use Caution Dear all, How can I easily scale the mgx.ctxgm.nii.gz files with the whole brain mean intensity using PETSufer? Is there a command to use in mri_gtmpvc like --rescale X? I know that I can find the mean in global.gm.dat and I can use that value for scaling the atlas based results in gtm.stats.dat but how can I easily scale the image? Thanks, Boris _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer