There are only a couple of things that I can think of here:
1) The images are saved in some floating point format and contain some NaNs or
other non-finite values. Are these the original images, or have they been
manipulated in some way first?
2) The contents of the images are all negative. Use the Display button to see
what values the voxels contain.
Best regards,
-John
On Sunday 05 April 2009 18:02, Sharon M Antonucci wrote:
> Hi SPMers.
> I've been trying to use the segment tool in SPM5 to segment, bias correct
> and spatially normalize an image. I used Chris Rorden's dcm2nii program to
> convert the dicom files to an SPM5 compatible img/hdr.
>
> I receive the following error message:
> Error running job: Attempted to access ch(1); index out of bounds because
> numel(ch)=0. In file "C:\MATLAB71\spm5\spm_minmax.m" (v1746), function
> "spm_minmax" at line 64. In file "C:\MATLAB71\spm5\spm_preproc.m" (v946),
> function "spm_preproc" at line 133. In file
> "C:\MATLAB71\spm5\spm_config_preproc.m" (v1032), function "execute" at line
> 472.
>
> Thanks so much for any assistance, I searched for this error message in the
> archives, but couldn't find it.
>
> Sharon
>
>
>
> Sharon M. Antonucci, Ph.D. CCC-SLP
> New York University
> Speech-Language Pathology & Audiology
> 665 Broadway, Room 914
> New York, NY 10012
> phone: 212-992-9445
> fax: 212-995-4356
> email: [log in to unmask]
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