Hi -
To get the RGB pictures you generally see in papers, you need to modulate
the the intensity of the RGB map by the FA value at each voxel. You can do
this by going to the (i) button, and, under "modulation" choose the FA
map.
Hopefully this should give you a clearer picture.
For more details, see
http://www.fmrib.ox.ac.uk/fsl/fslview/dti_tutorial.html
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 Wed, 24 Nov 2004, Anusha Sritharan wrote:
> After running the dtifit, the FA maps look good, however the dti_V1*
> images do look very noisy. In the RGB mode the colours are sharp (after
> setting the display to 0 to 1) but the the white matter bundles are not
> well defined. I am not sure where I am goimg wrong. I need help.
>
> TIA
>
> Anusha
>
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