you need to scale them. WHy do you have negative values? I would scale
them so that the min is 0 and the mean is around 100 or so. In matlab it
would be something like:
first copy 001.mgz to 001.orig.mgz
thne in matlab do:
[v,M,mr] = load_mgh('001.orig.mgz') ;
v = (v - min(v(:))) * 100;
save_
The rawavg.mgz is not empty. Many values are around 0 but there are also values
between 0.2 and 0.5 (and values between -0.4 and -0.5 in CSF).
It really seems like orig.mgz is all 0. How low do the values need to be for
the conversion to set them to 0?
Is there anything I can do to use recon-al
