[Brains-users] Problems with tissue class models and linux paths

[Michael Kiguta]

Hi Kevin,

I think what you need to do is save the segmentation script then open it 
as a nedit file. This enables you to examine all the parameters used in 
the tissue classification as well as the various file paths where the 
plugs as well as masks are stored. Examine each file path to ensure it 
is correct. The program will save and find those masks where you've 
specified they should be. I hope that helps.  Any other ideas Helen?

../Mike
Eugene Zeien wrote:

> Within our lab, the group "stdwkup" is assigned to personnel who do 
> "standard workup".
> The message "Error: chgrp: invalid group `stdwkup´" may be safely 
> ignored.
>
> The other issue is a little more difficult without more detail.  I'll 
> defer to Mike,
> who has more experience with segmentation processing.
>
> Kevin Berne wrote:
>
>> Hello,
>> After my request last week I have installed the recommended Brains2 
>> DEBUG 2005_09_05 as well as an up-to-date Cygwin environment. This 
>> resulted in a much smoother operation without the troublesome 
>> inability to create a standard directory. Nevertheless I have 
>> encountered more difficulties, which as a linux novice I have tried 
>> but failed to solve alone.
>> First of all, whenever I try to run a segmentation to create a tissue 
>> model, the process fails after writing the plugs, displaying an error 
>> message expressing either the inability of creating the model or 
>> loading certain masks. This occurs in several forms whatever options 
>> I seem to choose within the dialog boxes.
>> Furthermore, one certain error message keeps popping up whether I try 
>> to run a segmentation or a neural net, reading "Error: chgrp: invalid 
>> group `stdwkup´. I have tried to conduct my own internet-research, 
>> but since I do not have any experience with linux-based operating 
>> systems I can not make sense of what I mostly find.  I would gladly 
>> appreciate any recommendations or tips anyone could give me about 
>> this particular malfunction.
>> Thank you very much for your time,
>> Kevin Berne
>>
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-- 
Michael Kiguta
Psychiatry Image Processing Lab
Mental Health Clinical Research Center
University of Iowa
(319)353-8554