Hi Diane,
It sounds like you might just need to change your window/leveling. Are the
Min and Max values near the top of the screen (in fslview) at 0 and 0? If
so change the Max value to 255 (the max value from avwstats++ -R).
Hope this helps.
-Pete
> Dear Group,
> Any recommendations?
> Has anyone successfully used a set of rois (I am familiar with the AAL
> library) to display in fslview as overlays?
> I gather I would need to reslice them to display them as a layer on one of
> my anatomical images...but right now, I can't even view one by itself (see
> below)
> =============================================================
> I am also having trouble displaying the simple binary mask file (img/hdr)
> in
> fslview.
> -I'm using a mask of the right frontal lobe...so it is nice and big...not
> just lost in the image somewhere.
> All I see is black.
> -I used avwstats++ -r -R to get the min max voxel intensities and it
> reports
> 0 and 255.
> -I used avwstats++ -x to locate a max intensity voxel...but when I went to
> that location I still only saw black, (although fslview reports the voxel
> as
> having the value 255, it displays only the background black.
> -Shifting the transparency slider makes no difference.
> -If I display the image in ImageJ, I see the white mask of the R_frontal
> lobe as well as the black background.
> -SPM5 also displays the image with no problem.
> -FSLview displays other *nii and *nii.gz files with no issue, both the
> binary masks bet2 created and all of my other MR images.
> The little eye is checked on the lower right of fslview indicating that
> the
> image should be viewable. toggling it makes no difference.
> -I presume the images are the old style img/hdr file...but I thought nifti
> viewers, and especially fslview, could handle that...
> so I'm a little perplexed...
>
> Any thoughts on the source of my troubles would be greatly appreciated.
>
> Thanks very much,
>
> -Dianne
> --
> Dianne Patterson, Ph.D.
> [log in to unmask]
> ERP Lab
> University of Arizona
> 621-3256 (Office)
>
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