[Insight-users] Reading JPEG compressed DICOM files

[Luis Ibanez]

Hi Soumen,

One easy option for reading DICOM files that use JPEG
compression is to use GDCM.  This is an open source
library developed by the Creatis team at INSA, France.

       http://www.creatis.insa-lyon.fr/

You can download this library from

    http://www.creatis.insa-lyon.fr/Public/Gdcm/

ITK provides an ImageIO object (by Mathieu Malaterre)
that interfaces with gdcm.

Simply download, build and install gdcm in your system.
gdcm has already been converted to use CMake, so you will
find a familiar configuration process.

Once gdcm is installed, please rerun CMake on ITK, pass
to the advanced options and enable USE_GDCM.

You should read about the GDCMImageIO classes at

http://www.itk.org/Insight/Doxygen/html/classitk_1_1GDCMImageIO.html
http://www.itk.org/Insight/Doxygen/html/classitk_1_1GDCMSeriesFileNames.html

You may also find useful to look at the examples in
the directory


       Insight/Examples/IO



Regards,


   Luis


----------------
Soumen wrote:
> Hi!!!!
>  
> I am presently facing problem in reading DICOM files which has its Image 
> data part JPEG compressed. I have tried to use system jpeg library but 
> could not understand how to supply only the image dat apart 
> jpeg_decompress structure that the library has. All the examples uses 
> jpeg file as input to the structure and reads the header to gather 
> necessary information. But I beleive that is not the case here as the 
> header here is DICOM header not the ususal JPEG header. Also i donno 
> whether there are any  JPEG specific information in the DICOM header.
>  
> Plz guide me through the problem.
> Thnx.
>  
> Soumen Dey    
> 
> 
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