Try using whereami's -xform_xyz for a simplified output.
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-calc_chain srcspace destspace : compute the chain of transformations
combining and inverting transformations where possible
-xform_xyz : used with calc_chain, takes the x,y,z coordinates and
applies the combined chain of transformations to compute
a new x,y,z coordinate
-xform_xyz_quiet : Same as -xform_xyz but only ouputs the final result
-coord_out outfile : with -xform_xyz, -coord_file and -calc_chain,
specifies an output file for transformed coordinates
If not specified, coord_files will be transformed and printed
to stdout
Also consider Vecwarp providing the affine transformation. More information on the various ways to transform between MNI and Talairach spaces is discussed here:
[
afni.nimh.nih.gov]
