SPM99 Gem 13: Setting Blob Color Bar Window

Subject: Re: colour bar
From: John Ashburner &ltjohn@FIL.ION.UCL.AC.UK&gt
Date: Thu, 28 Mar 2002 11:23:16 +0000 (06:23 EST)
To: SPM@JISCMAIL.AC.UK

> I would like to use the same colour bar for two different VBM experiments..
> Please, does anyone know how can I do this?

If this is for the display of orthogonal views, then you can tweek the
values that the blobs are scaled to by using a little bit of extra
Matlab code.  First of all, display an image, with superimposed blobs.
Then in Matlab, type:

        global st
        st.vols{1}.blobs{1}.mx

This will give the maximum intensity of the set of blobs.  Then do the
same with the other set of results.  Find the largest of both results
(suppose it is 5.6) and scale the blobs so they are displayed with
this maximum by:

        global st
        st.vols{1}.blobs{1}.mx = 5.6;

Best regards,
-John


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