what is 'Res'? It should be a string with full path to the image
(i.e.,something like Res='/home/ce/data/mydata.img'). Then you will find
your image in that folder.

Without a path I guess your image will end up in your current folder,
but i am not sure about that.

Also make sure the scaling is not off when using spm_write_vol. In your
Vo handle, this is implicitely stored as the optimal intensity scaling
for your previous image, which might not be good for your new data.

Otherwise your code looks good to me.

Good luck,


Op 23-11-11 11:53, Ce Mo schreef:
> Dear all,
> I have been trying to write a code to perform some calculation on two
> beta imgs, but I don't know how to save the result/calculated img.
> I called the function spm_write_vol as:
> out = sc.*me; % target
> Vo = spm_vol(char(Canonical));% For simplicity, apply the input elements
> Vo.fname = Res; % change name
> Vo = spm_write_vol(Vo,out); % Write output img
> where out is the calculated img.
> After that, Vo was saved in workspace but I could not save the out.img
> or out.hdr in the current folder or anywhere.
> Any ideas and comments would be greatly appreciated.
> Many thanks and best regards,
> Ce

Dr. S.F.W. Neggers
Division of Brain Research
Rudolf Magnus Institute for Neuroscience
Utrecht University Medical Center

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