My best guess is that one of the images is stored left-handed, but the other
is stored right-handed. If you display an image, does one have a negative x
voxel size, but the other not?
Best regards,
-John
On Wednesday 07 January 2009 18:31, Kristopher Kosmatka wrote:
> I have been encountering an error with high dimensional warping, I hope
someone may know a solution. I have two grey matter segment images that have
been previously rigidly coregistered. The images are unsigned INT data type,
256x124x256 voxels. Nothing is unusual that I can see about the images. I
am running SPM5 revision 1782, in MATLAB 7.7, on x84_64 machine running
Scientific Linux (An enterprise Red Hat clone). The symptoms: All default
settings were used in the HDW setup. The HDW begins and prints the following
to standard output:
> >> --------------------------
>
> Running "High-Dimensional Warping"
> Generating uniform affine transformation field
> Warping (iterations=8 regularisation=4)
> 193.63152
> nan
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX...
>
>
> This is followed by many X's ad infinitum. I've allowed this to continue
> running for 15-20 minutes and it just continues like this without ever
> finishing the job. Recompiling the mex files in my SPM distribution using
> the makefile in src failed to fix the problem. Has anyone encountered this
> problem, any ideas?
>
> Many thanks,
> Kris
>
>
> Kristopher J. Kosmatka
> Research Specialist
> Johnson Neuroimaging Lab
> University of Wisconsin - Madison
> Wm. S. Middleton Memorial VA Hospital - GRECC
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