Floris
> although the voxel falls within the brain mask (mask.img) and has a
> value for the con and spmT image (which one would expect) the value for
> the ResMS image (and also the RPV image) is NaN.
This is an artifact of bilinear interpolation interpolating
in NaN's from outside the brain in the ResMS and RPV images (in the
other images are zero masked). Use Nearest Neighbor interp
avoid this.
You can right click on the image and select image->interp->NN
to fix this.
I get frustrated by this problem, and so changed the default
interpolation to NN; you can do this by making a change on line 1161 in
spm_orthviews. In that big long struct() definition, change
'hld',1
to
'hld',0
You'll notice that the 'Display' facility's interpolation button
will still report 'Bilinear' even though NN will be initially
used. If you want to fix this, change line 452 of spm_image.m
from
'Value',2,'ToolTipString','interpolation method for displaying images');
to
'Value',1,'ToolTipString','interpolation method for displaying images');
Hope this helps.
-Tom
-- Thomas Nichols -------------------- Department of Biostatistics
http://www.sph.umich.edu/~nichols University of Michigan
[log in to unmask] 1420 Washington Heights
-------------------------------------- Ann Arbor, MI 48109-2029
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