tkregister is only for viewing and manually registering volumes. Try 
mri_coreg which you can get from here

https://gate.nmr.mgh.harvard.edu/safelinks/greve/mri_coreg


On 11/01/2016 01:16 PM, Chiara Giacosa wrote:
> The images that I see in tkregister are the original ones before any 
> transformations. In this way I must do all the transformations manually, 
> which is of course time consuming and user-driven; whereas my hope is to let 
> the program do the transformations automatically, so that I have only to 
> check if they are correct.
> I am probably missing something obvious about the command usage...
>
> —•—
> Chiara Giacosa
> PhD student
> Concordia University
>
>
>> Il giorno 01 nov 2016, alle ore 12:47, Douglas N Greve 
>> <gr...@nmr.mgh.harvard.edu> ha scritto:
>>
>> what do you mean "it does nothing" ?
>>
>>
>>> On 10/28/2016 04:41 PM, Chiara Giacosa wrote:
>>> Thank you Douglas for your response.
>>>
>>> However I had already tried to check with tkregister without noedit
>>> and it does nothing. I have to make the changes manually in order to
>>> see differences in the images. It is weird that the coordinates are
>>> the same because These images are relative of one subject and a
>>> template that I created from our sample; I tried it also between two
>>> subjects and nothing changes. What can be my mistake?
>>>
>>> Thanks in advance!
>>> Chiara
>>>
>>> —•—
>>> Chiara Giacosa
>>> PhD student
>>> Concordia University
>>>
>>>
>>> Il giorno 28 ott 2016, alle ore 11:58, Douglas Greve
>>> <gr...@nmr.mgh.harvard.edu <mailto:gr...@nmr.mgh.harvard.edu>> ha scritto:
>>>
>>>> You should run tkregister2 without the --noedit to see if your
>>>> registration is correct. When you use --regheader, it will compute
>>>> the registration based on the scanner cooridinates in the mgz files.
>>>> They apparently have the same coordinates because the matrix is the
>>>> identity
>>>>
>>>>
>>>>> On 10/17/16 11:47 AM, Chiara Giacosa wrote:
>>>>> Dear experts,
>>>>>
>>>>> I am new to freesurfer and I am struggling making transformation of
>>>>> images from one subject to another as well as to a template. I have
>>>>> tried different ways, but I always end up with the original image as
>>>>> if the transformation was never applied. I used tkregister2 from
>>>>> command line and mri_vol2vol.
>>>>>
>>>>> I noticed that the transformation matrices are always the identity
>>>>> matrix in the first 3 columns/rows, no matter what transformation I
>>>>> tell the program to do. I don't think that this makes sense so I
>>>>> wonder if I am doing something wrong or if there might be an issue
>>>>> with the version of tkregister I have.
>>>>>
>>>>> My *commands *are:
>>>>> tkregister2 --mov $subj/mri/orig.mgz --targ my_template/mri/orig.mgz
>>>>> --regheader --reg $subj/reg/orig2templ_tkreg.dat --noedit
>>>>>
>>>>> mri_vol2vol --mov $subj/mri/rh.hand_manual.nii.gz --targ
>>>>> my_template/mri/orig.mgz --o $subj/mri/rh.hand_subj_in_mytempl.mgz
>>>>> --reg $subj/reg/orig2templ_tkreg.dat
>>>>>
>>>>> *Output Matrix *$subj/reg/orig2templ_tkreg.da:
>>>>> subject-unknown
>>>>> 1.000000
>>>>> 1.000000
>>>>> 0.150000
>>>>> 1.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00
>>>>> -1.370635986328125e+00
>>>>> 0.000000000000000e+00 1.000000000000000e+00 0.000000000000000e+00
>>>>> -4.750839233398438e+00
>>>>> 0.000000000000000e+00 0.000000000000000e+00 1.000000000000000e+00
>>>>> -1.000000000000000e+00
>>>>> 0 0 0 1
>>>>> round
>>>>>
>>>>>
>>>>> Contents of my $FREESURFER_HOME/build-stamp.txt file:
>>>>> freesurfer-Linux-centos6_x86_64-stable-pub-v5.3.0
>>>>>
>>>>> Any suggestion will be much appreciated!
>>>>>
>>>>> -- 
>>>>> Chiara Giacosa
>>>>> Ph.D. candidate
>>>>> Concordia University
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> Freesurfer@nmr.mgh.harvard.edu
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>> -- 
>> Douglas N. Greve, Ph.D.
>> MGH-NMR Center
>> gr...@nmr.mgh.harvard.edu
>> Phone Number: 617-724-2358
>> Fax: 617-726-7422
>>
>> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
>> FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
>> www.nmr.mgh.harvard.edu/facility/filedrop/index.html
>> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/
>>
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>

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/

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