DICOM @ OFFIS

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PostPosted: Thu, 2008-04-17, 09:28 
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Joined: Wed, 2008-04-16, 17:23
Posts: 3
Hello,

I am currently working for a client that has bought dcmtk and they have DICOM images with YBR color space that are not being converted to DICOM JPEG2000. I looked into the code, and in the cases of ARGB, CMYK and YBR it explicitly returns unknown color space (in the encode() function of the dcmjpeg\libsrc\djeijp2k.cc file). Is there a reason for that? Is there a way around it? Can the image be converted to RGB first and then JPEG2000?

Thank you


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PostPosted: Thu, 2008-04-17, 10:11 
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Joined: Wed, 2008-04-16, 17:23
Posts: 3
Sorry it seems they did not buy it. I do not see the DCMJP2K module and they most probably tried to do workaround themselves. Does your licensed DCMJP2K support conversion from YBR color space images? So I let them know.

Thanks


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PostPosted: Thu, 2008-04-17, 11:31 
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OFFIS DICOM Team
OFFIS DICOM Team

Joined: Tue, 2004-11-02, 17:22
Posts: 1202
Location: Oldenburg, Germany
DCMJP2K does support the compression of uncompressed images using the YBR_FULL photometric interpretation, both lossy and lossless. It does not support compression of uncompressed YBR_FULL_422 or YBR_PARTIAL_422 images, but such images using color subsampling should not exist in uncompressed form anyway.


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PostPosted: Thu, 2008-04-17, 13:24 
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Joined: Wed, 2008-04-16, 17:23
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Ok great. Thank you for your prompt response.


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