[FieldTrip] preparing the forward model in beamforming

[Belluscio, Beth (NIH/NINDS) [E]]

Hi Fieldtrip users-
  I am trying to learn to use the beamforming technique as outlined in the tutorial.  I have a dicom MRI that I used to create a file that contains markers for the fiducials.  I then used this in ft_read_mri and ft_volumesegment - both of which seemed to work fine.  Then, when I used ft_prepare_singleshell, I get this error message:
   "??? Undefined function or method 'imfill' for input arguments of type 'char'.
  Error in ==> prepare_mesh_segmentation at 68
     Seg = imfill((mri.seg==cfg.tisse(i)), 'holes')"

I am used Fieldtrip 20110721

Any suggestions?
Beth.

Beth Belluscio MD-PhD
Clinical Fellow
Human Motor Control Section
NINDS, NIH
301-402-3495

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