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12 bit jpeg [message #65035] Mon, 09 February 2009 14:15 Go to next message
dktr.ted is currently offline  dktr.ted
Messages: 17
Registered: November 2006
Junior Member
Hi all,

I know the IDL dicom package supports dicom files included 12 bit jpeg
compressed data, however I'm wondering if anyone has any tricks for
reading such files without paying the extra $$$ for the dicom
license. Don't want to sound cheap, but I don't quite see the point
of paying for the whole package just to get the ability to read 12 bit
jpegs. If no one has an IDL solution to reading this data, perhaps
someone can point me to an external utility for converting this data?
Thanks in advance for any help you can give.

Ted
Re: 12 bit jpeg [message #65107 is a reply to message #65035] Tue, 10 February 2009 10:37 Go to previous message
ben.bighair is currently offline  ben.bighair
Messages: 221
Registered: April 2007
Senior Member
On Feb 10, 1:19 pm, dktr....@gmail.com wrote:
> Thanks Robbie. I agree in principle with your suggestion of getting
> the dicom files in uncompressed form, the trick here is teaching less-
> tech savvy collaborators how to properly export their data and send it
> to me. ;) I will look into dcmtk.
>
> On Feb 10, 2:43 am, Robbie <ret...@iinet.net.au> wrote:
>
>> I would recommend just using dcmtk (www.dcmtk.org) to convert your
>> images. It will probably be faster than anything written in IDL.
>
>> In any case, it is part of the DICOM standard that an application
>> entity (DICOM node) should support uncompressed transmission of
>> images. Thus, theoretically you should be able to receive the file in
>> uncompressed form. This is the part where I rant about that DICOM is
>> not a file-format, it is a network protocol blah-blah-blah.
>
>> Robbie

Hi,

I am not sure if it would help in your case, but Karsten Rodenacker
has written the code required to use the Bio-Formats image reader from
Loci. I know that Bio-Formats reads Dicom, but I am not so sure about
the 12-bit stuff. It would be worth checking out...

http://www.loci.wisc.edu/ome/formats-idl.html

Cheers,
ben
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