Hi,
It seems that if I keep saving files in nifti format (for example by 3dZeropad), the tilt angle of an oblique dataset is lost. (3dinfo says its orientation is plumb). I wonder if there is any way to add back the tilt angle? The loss of tilt angle seems to make the job more difficult for align_epi_anat.py.
Thanks!
Programs that alter the geometry lose the obliquity information because the original information is no longer accurate. Usually there is a way to do the alignment beforehand or to use the zeropadded output as a master.
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