[Mristudio-users] all positive eigenvectors!

[Mojdeh]

Thanks Susumu! I looked at the eigenvector file in the DTIstudio and it 
indeed has both + and - numbers! The problem is that when I save the 
file in the "Analyze"  format and open it  in MATLAB  all the values are 
between 0-1! I was thinking this is because the real x-y-z coordinate 
values are converted into RGB values, is this right? how can I access 
the actual coordinate values in MATLAB?

Thanks a lot,
Mojdeh

Mojdeh wrote:
> Hi there,
>
> I have 49 slice DTI image of brain with 2 B0 +  23 gradient 
> directions. I loaded the image and calculated the tensor, 
> eigenvectors, ... for the image and then save the results in analyze 
> format. However, when I load the eigenvectors into MATLAB and look at 
> the x-y-z coordinates of eigenvectors they are all positive numbers 
> which doesn't make any sense to me! Does anyone know what might be the 
> problem?
>
> Thanks a lot in advance,
> Mojdeh
>