I would convert them to a binary mask (0,1) then average the masks together. Each vertex would then be the "probability" that a given vertex was in the ROI. You can convert the label to a binary mask with a second call to mri_label2label (--outmask option)
doug

On 11/4/13 8:47 PM, Miggy Chuapoco wrote:

Hi all,

We have ROIs (defined in mrVista) that we converted to label files and would like to now make an average ROI. Does a pipeline exist that will help us create an average ROI composed of these label files. We were thinking of using mri_label2label to register the ROIs to a common surface but we unsure how to average the ROIs at that point.

Thank You,

Miggy
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer