[MINC-users] nii2mnc problems.

[Giovanna Pellecchia]

Thanks for your reply. I am new at this, so I am not sure how to check  the value of dim[0]. 
Why would that make a difference from one computer to another?

Giovanna Pellecchia
Research Analyst
Toronto Western Hospital
& Centre for Addiction and Mental Health

> Message: 2
> Date: Thu, 09 Apr 2009 22:06:27 -0400
> From: "Roch M. Comeau" <rcomeau at mac.com>
> Subject: Re: [MINC-users] nii2mnc problems.
> To: MINC users mailing list <minc-users at bic.mni.mcgill.ca>
> Message-ID: <FD161774-F86B-4A8C-BD88-EBCAC36BCD7B at mac.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> 
> HI,
> 
> Maybe have a look at the value of dim[0]. I've seen images where  
> dim[0] is incorrectly set to 0 instead of 3 or 4.
> 
> Roch Comeau
> Rogue Research Inc.
> 
> On 9-Apr-09, at 5:03 PM, Giovanna Pellecchia wrote:
> 
> >
> > Howdy all,
> >
> > if I try to use nii2mnc I get this interesting error message:
> >
> > nii2mnc test_image_00001.hdr
> > ** ERROR: nifti_convert_nhdr2nim: bad dim[0]
> > ** ERROR (nifti_image_read): cannot create nifti image from header  
> > 'test_image_00001.hdr'
> > Segmentation fault
> > ______________________
> > The same test image works fine on another computer:
> > nii2mnc test_image_00001.hdr
> > orient = 0
> > <nifti_image
> >  nifti_type = 'ANALYZE-7.5'
> >  header_filename = 'test_image_00001.hdr'
> >  image_filename = 'test_image_00001.img'
> >  image_offset = '0'
> >  ndim = '4'
> >  nx = '163'
> >  ny = '186'
> >  nz = '72'
> >  nt = '1'
> >  dx = '-1.06677'
> >  dy = '1.06677'
> >  dz = '1.87482'
> >  dt = '1'
> >  datatype = '16'
> >  datatype_name = 'FLOAT32'
> >  nvox = '2182896'
> >  nbyper = '4'
> >  byteorder = 'MSB_FIRST'
> >  cal_min = '0'
> >  cal_max = '1'
> >  descrip = 'MINC file'
> >  num_ext = '0'
> > />
> > Unknown XYZ units 0
> > xspace start:  86.9418 step:  -1.0668 cosines:   1.0000   0.0000    
> > 0.0000
> > yspace start: -99.2096 step:   1.0668 cosines:   0.0000   1.0000    
> > 0.0000
> > zspace start: -67.4934 step:   1.8748 cosines:   0.0000   0.0000    
> > 1.0000
> > (where:
> > nii2mnc -v
> > program: 2.0.15
> > libminc: 2.0.15
> > netcdf : 3.5.0 of Aug  8 2003 13:03:52 $
> > HDF5   : 1.6.2 )
> > (installed from source on Debian Sarge)
> > ____________________
> >
> > My current version:
> > nii2mnc -v
> > program: 2.0.15
> > libminc: 2.0.15
> > netcdf : "3.6.2" of May 10 2008 09:14:53 $
> > HDF5   : 1.6.6
> > (installed using mincbundle on a recent Ubuntu Intrepid install with  
> > all the recommended upgrades).
> > (I also have an unusual situation, as it turns out that most of the  
> > binaries are located in /bin and the libraries in /usr/lib by  
> > default - no idea why!)
> >
> > Hope somebody can point to a solution...
> > Thanks!
> > Giovanna.


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