Hi,
I am not sure what you are trying to do? Have you registered the DTI data to MNI space? You do not need to transform the data. The HCP already provide transformations to/from MNI space that you can directly use.
Cheers
Stam
On 9 Feb 2016, at 09:23, Stefano Zappala' <[log in to unmask]> wrote:
> Hi,
>
> the output of fshd for the data.nii.gz registered image is:
>
> sizeof_hdr 348
> data_type FLOAT32
> dim0 4
> dim1 182
> dim2 218
> dim3 182
> dim4 288
> dim5 1
> dim6 1
> dim7 1
> vox_units mm
> time_units s
> datatype 16
> nbyper 4
> bitpix 32
> pixdim0 0.000000
> pixdim1 1.000000
> pixdim2 1.000000
> pixdim3 1.000000
> pixdim4 1.000000
> pixdim5 0.000000
> pixdim6 0.000000
> pixdim7 0.000000
> vox_offset 352
> cal_max 0.0000
> cal_min 0.0000
> scl_slope 1.000000
> scl_inter 0.000000
> phase_dim 0
> freq_dim 0
> slice_dim 0
> slice_name Unknown
> slice_code 0
> slice_start 0
> slice_end 0
> slice_duration 0.000000
> time_offset 0.000000
> intent Unknown
> intent_code 0
> intent_name
> intent_p1 0.000000
> intent_p2 0.000000
> intent_p3 0.000000
> qform_name Aligned Anat
> qform_code 2
> qto_xyz:1 -1.000000 0.000000 -0.000000 90.000000
> qto_xyz:2 0.000000 1.000000 -0.000000 -126.000000
> qto_xyz:3 0.000000 0.000000 1.000000 -72.000000
> qto_xyz:4 0.000000 0.000000 0.000000 1.000000
> qform_xorient Right-to-Left
> qform_yorient Posterior-to-Anterior
> qform_zorient Inferior-to-Superior
> sform_name Aligned Anat
> sform_code 2
> sto_xyz:1 -1.000000 0.000000 0.000000 90.000000
> sto_xyz:2 0.000000 1.000000 0.000000 -126.000000
> sto_xyz:3 0.000000 0.000000 1.000000 -72.000000
> sto_xyz:4 0.000000 0.000000 0.000000 1.000000
> sform_xorient Right-to-Left
> sform_yorient Posterior-to-Anterior
> sform_zorient Inferior-to-Superior
> file_type NIFTI-1+
> file_code 1
> descrip FSL5.0
> aux_file Random-Rainbow
>
> Regards,
> Stefano Zappala'.
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