[FieldTrip] reporting errors while calling ft_volumesegment with recent fieldtrip releases

[sophie chen]

Dear Fieldtripers

I am having some errors when running recent fieldtrip releases while
calling ft_volumesegment that I don't have with former  fieldtrip version,
following what I get:
*with fieldtrip fieldtrip-20111024 *

 cfg = [];
cfg.name     = 'ctf';
cfg.output= { 'tpm'  };
segmentedmri = ft_volumesegment(cfg, mri);

Warning: adding D:\SOPHIE\Software\fieldtrip-20111024\external\spm8 toolbox
to your Matlab path

the input is volume data with dimensions [256 256 256]
Converting the coordinate system from ctf to spm
performing the segmentation on the specified volume
segmentedmri =
          dim: [256 256 256]
    transform: [4x4 double]
     coordsys: 'ctf'
         unit: 'mm'
         gray: [256x256x256 double]
        white: [256x256x256 double]
          csf: [256x256x256 double]
          cfg: [1x1 struct]

*with fieldtrip 'fieldtrip-20121203'
*
>> cfg = [];
cfg.name     = 'ctf';
cfg.write      = 'no';
cfg.output= {  'tpm'   };
segmentedmri = ft_volumesegment(cfg, mri);

Warning: FieldTrip is not yet on your MATLAB path, adding
D:\\SOPHIE\\Software\\fieldtrip-20121203(1)\\fieldtrip-20121203
> In ft_defaults at 60
  In ft_volumesegment at 130
the input is volume data with dimensions [256 256 256]
Converting the coordinate system from ctf to spm
Rescaling NIFTI: slope = 0.00342945, intercept = 0
Smoothing by 0 & 8mm..
Coarse Affine Registration..
Fine Affine Registration..
Error using ft_write_mri (line 128)
unsupported data format
Error in ft_volumesegment (line 274)
  Va = ft_write_mri([cfg.name,'.img'], mri.anatomy, 'transform',
mri.transform, 'spmversion', cfg.spmversion); *


and 'fieldtrip-20130210*'

cfg = [];
cfg.name     = 'ctf';
cfg.write      = 'no';
cfg.output= {  'tpm'   };
segmentedmri = ft_volumesegment(cfg, mri);

the input is volume data with dimensions [256 256 256]

Warning: adding
D:\SOPHIE\Software\fieldtrip-20130210\fieldtrip-20130210\external\spm8
toolbox to your Matlab path

Converting the coordinate system from ctf to spm

Warning: adding
D:\SOPHIE\Software\fieldtrip-20130210\fieldtrip-20130210\external\freesurfer
toolbox to your Matlab path

Rescaling NIFTI: slope = 0.00342945, intercept = 0
Smoothing by 0 & 8mm..
Coarse Affine Registration..
Fine Affine Registration..
Warning: could not open ctf.img
> In fileio\private\warning_once at 116
  In fileio\private\filetype_check_header at 54
  In ft_filetype at 338
  In ft_write_mri at 54
  In ft_volumesegment at 282
Error using ft_write_mri (line 128)
unsupported data format
Error in ft_volumesegment (line 282)
  Va = ft_write_mri([cfg.name,'.img'], mri.anatomy, 'transform',
mri.transform, 'spmversion', cfg.spmversion);

Please help... :-)  it's not convenient to switch fieldtrip version while
running scripts...
Thanks a lot!

cheers
Sophie
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