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Dear freesurfers,

 

is there an elegant way of computing the intersection or overlap of different labels or - which would be even more useful for my application - annotations?

 

I only managed to find labels_intersect (which appears to be from MailScanner has detected a possible fraud attempt from "secure-web.cisco.com" claiming to be https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg11344.html ) which is awfully slow. In case this is of use for anyone else, I attached a modified version using 'join' that runs much faster, only has some compatibility issues with Mac.

 

 

>time labels_intersect precentral.label frontal.label out1.label > /dev/null

real    1m41.862s
user    0m31.052s
sys    0m30.757s
>time bash bash_labels_intersect.sh precentral.label frontal.label out2.label

real    0m0.193s
user    0m0.118s
sys    0m0.015s
>diff -w out1.label out2.label
>

 

 

Thank you and best wishes

Cornelius

 

 

--

Cornelius Kronlage

Assistenzarzt
Klinik für Neurologie
| Neurologie mit Schwerpunkt Epileptologie

Universitätsklinikum Tübingen

Hoppe-Seyler-Str. 3 | 72076 Tübingen