[Freesurfer] automating custom color map

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Hi Freesurfer Users,

I used linear regression to map regional beta values on the fsaverage surface. I want to use a colormap that goes from blue to gray or gray to red (no cyan and yellow). I've been using a custom colormap shown in example.tiff. I've been making this by going into freeview and adjusting the parameters from the GUI. Is there a way to load this and create a snapshot from the command line? I know you can adjust certain parameters like overlay threshold and change the colormap, but I don't see an option for "custom". The end goal is to make multiple regression models and automate the screenshot process.

Best,

Ryan M Nillo

Staff Research Associate I

UCSF Department of Radiology and Biomedical Imaging