storescu and RLE encoded images

[ozh]

We are trying to send RLE encoded images with storescu to an scp that does not support this transfer syntax. I noticed that storescu.cc has some code enabled if ON_THE_FLY_COMPRESSION macro is set. I recompiled storescu with this flag, but it still does not seem to uncompress images:

avalanche.48> /opt/src/freeware/dcmtk-3.5.3/dcmnet/apps/storescu -aec
CB-RESEARCH -aet CB-RESEARCH localhost 5678 A4419442S1I38.dcm
DIMSE Warning: (CB-RESEARCH,CB-RESEARCH): sendMessage: unable to convert
dataset
from 'RLE Lossless' transfer syntax to 'BigEndianExplicit'.

storescu: Store Failed, file: A4419442S1I38.dcm:
0006:020e DIMSE Failed to send message
storescu: SCU Failed:
0006:020e DIMSE Failed to send message

I tried a variety of combinations of 'propose' type flags, but I couldn't
convince storescu to convert the TS and send it as an uncompressed
transfer syntax. I had similar problems with the JPEG baseline file.

Is there a way to accomplish it with storescu or do we have to write our own scu?

Thank you,
Eugene Ozhinsky

[Jörg Riesmeier]

The ON_THE_FLY_COMPRESSION stuff is experimental and more or less untested. If it does not work for you I would recommend to decompress the image using "dcmdrle" prior to calling "storescu".

[hmeyer]

It does not work for me either.
Did ON_THE_FLY_COMPRESSION actually work before?
It seems storescu does not even try to check whether an appropriate decoder extists or not.
Which would be the right place in the code-chain to do this?
I really would like to get this working.
Any help appreciated.

[Michael Onken]

Hi,

Just to complete the thread: the problem was solved in the meantime and the patch will be part of the next snapshot

Best regards,
Michael

[hmeyer]

Thank you very much!