Dear FreeSurfer's experts, I would like to visualize on freeview two overlays on fsaverage cortical surface.
I have used the code below found on the mailing list : *mri_binarize --i sig1.mgh --min 0.1 --binval 1 --o sig1_th.mghmri_binarize --i sig2.mgh --min 0.1 --binval 2 --o sig2_th.mgh* *fscalc sig1_th.mgh add sig2_th.mgh --o sig1_sig2.mghmris_seg2annot --seg sig1_sig2.mgh --ctab sig1_sig2_LUT.txt --s fsaverage --h lh --o sig1_sig2.annot* with sig1_sig2.annot defined as below : #No. Label Name: R G B A 0 Unknown 128 128 128 0 1 sig1 70 130 180 0 2 sig2 245 245 245 0 3 Overlay_sig1_sig2 205 62 78 0 My problem is that I'd like to view my cortical suface with binary curvature where there is no value (=0). Could I specify the unknown label (0) to be transparent or anything that could solve the mater ? Best regards, Matthieu
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