Hello Free surfer Expert,

I have started working on Free surfer. Now i m facing two issues such as :

1. I m trying to use contour ...

    but it is working as per guidance in website given.
    https://surfer.nmr.mgh.harvard.edu/fswiki/FreeviewGuide/FreeviewTools/VoxelEdit

   Under heading of Contour Draw....can any tell me pre requisite to draw contour.

   I have loaded T1 image and then made new volume....after tat ctrl+alt+ left click....not working...?

     Can any one help me with contour function, how to use in details.

2. I wanted to do segmentation of image into WM,GM and CSF.

    Please suggest what the best way/ Algorithm to so get MRI image segmentation using Freesurfer.

Thanks in advance.