[Insight-users] problem with GDCM reader and linux

[C. Aaron Cois]

Thanks for the help.  This was an unfortunately simple error on my 
part.  The version of ITK we were using on the Suse machine was old (1.6 
or 1.8), but no errors were produced in calling GDCMImageIO, so none of 
us considered that we could be using a non-working version of the 
class.  Once ITK was upgraded to 2.6, everything began working as 
expected. 

       Aaron

Mathieu Malaterre wrote:

> C. Aaron Cois wrote:
>
>> I'm using GDCMImageIO to read some dicom series from data collected 
>> on a GE machine.  I'm having no trouble with this on my Windows 
>> machine.  However, when I try to read in the same files, using the 
>> exact same software compiled on a Suse Linux machine (which I need to 
>> do, as this is our heavy computation machine), the images are read 
>> in, but the data is incorrect.  All pixels are read in as the same 
>> intensity, though the size, spacing and origin are all read in 
>> correctly.
>> I have tested to see whether this was an issue of file corruption 
>> from transfer from the windows machine to the linux machine, and have 
>> confirmed that it is not (by transferring the files back from the 
>> linux machine to the windows machine and reading them in without 
>> issue).  The only thing I can think of is that there is some issue 
>> with GDCMImageIO being compiled on my linux platform making it 
>> function improperly.  Anyone have any ideas?
>
>
>
> Aaron,
>
>     I am very surprised of the result as my main platform of 
> development for GDCM is indeed Linux. I never played with a Suse though.
>     Depending on how much time you have on your hand here is a couple 
> of suggestion:
>
> * First thing first, does `ctest -R GDCM -V` works for you ? (run all 
> the GDCM related tests on the Suse machine).
> * Strip down the test to the minimal test, like ImageReadWrite and run 
> it through valgrind.
> * Download GDCM from it's main CVS server (*). And build the examples. 
> PrintFile will dump the header and if you build GDCM with USE_VTK:ON 
> you'll get a vtkgdcmViewer which should display the DICOM image file.
>
> If all else fails, send me the original DICOM image, the DICOM image 
> rewritten by GDCM on the Suse and the C++ code used to rewrite it. 
> I'll inspect what can be wrong.
>
> BTW is this a 64 bits system ? What is the ITK version used (on 
> windows and Suse) ?
> Mathieu
> (*)
> http://www.creatis.insa-lyon.fr/Public/Gdcm/Cvs.html
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