I currently have an image that is 64x64x39, with voxel sizes
3.4375x3.4375x4. I would like to resample this image to be 256x256x39,
and the voxel sizes would end up being .8594x.8594x4. However, I don't
have any images that are 256x256x39; so, I was wondering how I can
create a generic image with those dimensions, so I can then use imCalc
to resample the original image. I imagine it involves spm_vol,
spm_write_vol, etc. But I'm not sure how to handle the transformation
matrix, in particular.
On a related note, let's say I want to resample an image that's
64x64x37, and I *do* have a 256x256x37 image. However, the voxel sizes
don't match up (x- and y- sizes are not different by a factor of 4).
Does this cause a problem? And if so, I suppose I would just create a
generic image of the same size I want in the end? I plan on using sinc
interpolation probably, if that matters.