This is an example of diff output for the test without the --trgsurf option:
endorphin.14> diff --side-by-side DLWeber_rh_ACC.label
DLWeber_surface_rh_ACC.label | head -
#!ascii label , from subject ucsf_wa #!ascii
label , from subject ucsf_wa
660 660
106091 3.122 21.824 57.650 0.000000 | 106091
2.037 22.222 57.359 0.000000
106981 7.056 22.926 59.092 0.000000 | 106981
7.114 22.942 59.024 0.000000
106982 6.147 22.676 59.500 0.000000 | 106982
6.137 22.636 59.159 0.000000
106983 5.178 22.521 58.995 0.000000 | 106983
4.816 22.583 58.765 0.000000
106984 4.149 22.523 58.728 0.000000 | 106984
3.440 22.988 58.509 0.000000
106985 3.138 22.925 58.465 0.000000 | 106985
2.206 23.278 58.150 0.000000
106991 7.153 22.847 58.153 0.000000 | 106991
7.272 22.963 58.219 0.000000
106992 6.603 22.649 58.357 0.000000 | 106992
6.639 22.730 58.329 0.000000
Are these values just from different layers in the rh.<surf> data?
Thanks, Darren
Doug Greve wrote:
>
> I think it should be the same. When the source and target subjs are
> the same, there should not be any resampling.
>
>
>
> On Tue, 11 Jul 2006, Bruce Fischl wrote:
>
>> It probably won't be the same as a cp in any case, as you will go
>> through some resampling steps.
>>
>> cheers,
>> Bruce
>> On Tue, 11 Jul 2006, Doug Greve wrote:
>>
>>>
>>> The label coords as created by tksurfer should be that of the white
>>> surface, so you're really just changing the coords from that of white
>>> to that of pial. Can you try removing --trgsurf pial from your cmd
>>> and see if the labels are the same?
>>>
>>> doug
>>>
>>>
>>>
>>>
>>> Darren Weber wrote:
>>>
>
> Dear Doug et al.,
>
> I'm trying to test mri_label2label because we've observed some strange
> results in the download for:
>
> freesurfer-Linux-rh9-stable-pub-v3.0.2
>
> To test the program, I thought it would be sensible to map a label of
> one subject onto itself, with a different label filename for the
> output.
> So I created a large label in a subject rh inflated surface and
> saved it
> to X.label file. I then tried to run mri_label2label using the same
> srcsubject and target subject, with a different name for the target
> label, ie:
>
> mri_label2label \
> --srclabel $SUBJECTS_DIR/${srcsubject}/label/$label \
> --trglabel $SUBJECTS_DIR/${srcsubject}/label/$newlabel \
> --srcsubject ${srcsubject} \
> --trgsubject ${srcsubject} \
> --regmethod surface --hemi $hemi --trgsurf pial
>
> In effect, this should be equivalent to:
>
> cd $SUBJECTS_DIR/${srcsubject}/label/
> cp $label $newlabel
>
> That is, the label mapping onto the same subject surface should be
> identical. It is not. Can you please try to replicate this result? I
> would like to know if it is particular to the setup here. If you
> find a
> bug in mri_label2label, please forward a fix ASAP, as we are trying to
> complete some analysis that depends on mapping labels across subjects.
>
> Thanks, Darren
>
>
> --
>
> Darren L. Weber, Ph.D.
> Postdoctoral Scholar
>
> Dynamic Neuroimaging Laboratory,
> UCSF Department of Radiology,
> 185 Berry Street, Suite 350, Box 0946,
> San Francisco, CA 94107, USA.
>
> Tel: +1 415 353-9444
> Fax: +1 415 353-9421
> www: http://dnl.ucsf.edu/users/dweber
>
> "To explicate the uses of the brain seems as difficult
> a task as to paint the soul, of which it is commonly
> said, that it understands all things but itself."
> Thomas Willis (The Anatomy of the Brain and Nerves, 1664)
>>>>
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>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
--
Darren L. Weber, Ph.D.
Postdoctoral Scholar
Dynamic Neuroimaging Laboratory,
UCSF Department of Radiology,
185 Berry Street, Suite 350, Box 0946,
San Francisco, CA 94107, USA.
Tel: +1 415 353-9444
Fax: +1 415 353-9421
www: http://dnl.ucsf.edu/users/dweber
"To explicate the uses of the brain seems as difficult
a task as to paint the soul, of which it is commonly
said, that it understands all things but itself."
Thomas Willis (The Anatomy of the Brain and Nerves, 1664)
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Freesurfer mailing list
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