[FieldTrip] preparing the forward model in beamforming

[Rojas, Don]

Beth,

The matlab function imfill.m appears to be missing for your matlab install. It is part of the matlab image processing toolbox, which is not part of the base matlab package. You could check with your local matlab admin to see if you should have the image processing toolbox. FieldTrip should probably check for the existence of this toolbox when used so that it can throw a more meaningful error message.

Best,

Don

On Aug 15, 2011, at 3:25 PM, Belluscio, Beth (NIH/NINDS) [E] wrote:

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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-----------------------
Don Rojas, Ph.D.
Associate Professor of Psychiatry
U. of Colorado Denver Anschutz Medical Campus
Director, UCD Magnetoencephalography Lab
13001 E. 17th Pl F546
Aurora, CO 80045
303-724-4994

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