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When you run dtifit in FSL it creates FA, MD images and V1,V2,V3 (vector images). To display the colors/lines you display, for example, an FA image and the V1 image at the same time...then select RGB or lines for the V1 image. In my experience, not all programs divide up the tensor image the same way...so if you created the images in a different program, that might account for your troubles? -Dianne On Thu, May 14, 2009 at 10:58 AM, Kanterakis, Efstathios < [log in to unmask]> wrote: > Hello, > I really like your image viewer and I was enthused to find a DTI > display option in it. I am trying to load in a diffusion tensor, > 128x128x90x6, voxel size 2x2x2, float32 that is saved in the Nifti > convention (lower triangular, NIFTI_INTENT_SYMMATRIX). > > In the information dialog, I select image type: Diffusion Tensor and > display as RGB but the image is still displayed in grayscale. When I > select Lines, I get a few faint blue dots. Modulation by the FA gives me > an overlay of the tensor with the FA and two sliders (still no color or > lines). But I can't get even close to the beauty shown in this document > http://www.fmrib.ox.ac.uk/fsl/fslview/dti.html > > Any help would be greatly appreciated. > Thanks, > > Stathis A. Kanterakis > Section of Biomedical Image Analysis > University of Pennsylvania / Radiology > [log in to unmask] > > > The information contained in this e-mail message is intended only for the > personal and confidential use of the recipient(s) named above. If the reader > of this message is not the intended recipient or an agent responsible for > delivering it to the intended recipient, you are hereby notified that you > have received this document in error and that any review, dissemination, > distribution, or copying of this message is strictly prohibited. If you have > received this communication in error, please notify us immediately by > e-mail, and delete the original message. > > -- Dianne Patterson, Ph.D. [log in to unmask] University of Arizona SLHS 328 621-5105