I would like to make dartel import image (usually represented as rc*) of certain images.
I am trying to utilize DARTEL normalize procedures for normalization of FA images.
However, when the normal DARTEL procedures are used (with a little twist to apply segmentation procedures to FA images), it turned out while outer edge of the white matter parts of the FA images are well aligned among different subjects, within the deep white matter areas, white matter places with different FA values are not aligned well. So, I would like to use images of the white matter parts of the FA map, instead of images of white matter segmentation (rc2*) in the DARTEL procedures, so that the information of difference of FA in the white matter tissue can be utilized in the normalization procedures.
Can anyone advise on how to create dartel import image (r-) of arbitrary images? Or do the abovementioned dartel procedures with images of the white matter parts of the FA map make sense?
Thanks in advance.