Hi -
The problem is in fslview. When you load in the DTI image, the display
range will be around -1 to 1. You need to change this to be 0 to 1. Then
the colours should look sharp.
This problem is fixed for the next release.
Thanks
T
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Tim Behrens
Centre for Functional MRI of the Brain
The John Radcliffe Hospital
Headley Way Oxford OX3 9DU
Oxford University
Work 01865 222782
Mobile 07980 884537
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On Fri, 19 Nov 2004, Anusha Sritharan wrote:
> I am very new to fsl. At the moment I am learning to use the fdt tool box
> to analyse some dti data. As a first step I have created the normalised
> bvecs
>
> 0.00 -0.66159 0.35592 .........
> 0.00 0.46084 0.76144 .........
> 0.00 -0.5915 -0.54178 ..........
>
> and the corresponding bvals
>
> bvals 0 1200 1200 .............
>
> I have more than one b0 for which bvecs and bvals have appropriate values.
> when I run dtifit and view V1/V2 images using fslview, the RGB mode does
> not work very well. I expect to get sharp colours such as R, G and B,
> instead I get very soft light shades.
>
> I did check the archives and did find a email with the same problem. But I
> have the normalised vectors and donot know where I am going wrong. Can
> anybody help
>
> TIA
>
> From
> Anusha
>
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