Search found 1437 matches

by Marco Eichelberg
Wed, 2005-05-25, 10:45
Forum: DCMTK - General
Topic: Embedding a precompressed JPEG in a DICOM
Replies: 7
Views: 10386

Does the DICOM server need to support receiving the file in the JPEGProcess25_27TransferSyntax tansfer syntax (only receiving, since processing, after it is received, is performed by another application)? Yes, this is how the DICOM network protocol works. The transfer syntax needs to be negotiated ...
by Marco Eichelberg
Fri, 2005-05-20, 12:47
Forum: DCMTK - General
Topic: unable to retrive images using movescu
Replies: 3
Views: 5913

You are not really trying to send pixel data as part of the C-MOVE-RQ message, are you? I suggest carefully re-reading DICOM part 4 section C.4.2.2.
by Marco Eichelberg
Fri, 2005-05-20, 12:45
Forum: DCMTK - General
Topic: JPEG2000LossLessOnly Transfer Syntax with native Icon Image
Replies: 4
Views: 7556

Your analysis is correct. The question is what you would like to have on the "to do list" for the next version. The problem you describe is only manifest with compression codecs that do not compress icon images (all codecs in DCMTK always do compress icon images, for good reason :wink: ). ...
by Marco Eichelberg
Fri, 2005-05-20, 12:40
Forum: DCMTK - General
Topic: Does DCMTK has any requirements on settings of the system?
Replies: 1
Views: 3341

In general, no.
by Marco Eichelberg
Fri, 2005-05-20, 12:40
Forum: DCMTK - General
Topic: Embedding a precompressed JPEG in a DICOM
Replies: 7
Views: 10386

Are there any other requirements to be met in order to send the image successfully.
This is not really a DCMTK related question, is it. I would suggest you re-read the definition of encapsulated pixel data in part 5 of the DICOM standard, in particular with regard to the so-called offset table.
by Marco Eichelberg
Thu, 2005-05-19, 09:03
Forum: DCMTK - General
Topic: how can i create dicom items in sequences?
Replies: 7
Views: 10681

DICOM objects containing multiple "images" (frames) do not use a sequence structure for encoding the pixel data. They use a direct concatenation of pixel cells inside attribute (7FE0,0010) along with the Multiframe Module that describes properties of the multiframe objects. Details can be ...
by Marco Eichelberg
Thu, 2005-05-19, 09:02
Forum: DCMTK - General
Topic: Embedding a precompressed JPEG in a DICOM
Replies: 7
Views: 10386

You are mixing Pixel Data (DCM_PixelData, attribute tag is 7FE0,0010) and Pixel Data Group Length (DCM_PixelDataGroupLength, attribute tag is 7FE0,0000).
by Marco Eichelberg
Wed, 2005-05-18, 11:09
Forum: DCMTK - General
Topic: imagectn getting aborted before giving results
Replies: 1
Views: 3332

The error message indicates that the other side aborts the association, not imagectn.
by Marco Eichelberg
Fri, 2005-05-13, 15:34
Forum: DCMTK - General
Topic: Return VR type based on group and element
Replies: 2
Views: 3880

The code is rather simple. You need to get a read lock to the global data dictionary, locate the dictionary entry for your attribute tag and look up the VR in the dictionary entry. Something along the following lines should do: DcmDataDictionary& dict = dcmDataDict::rdlock(); const DcmDictEntry*...
by Marco Eichelberg
Fri, 2005-05-13, 09:20
Forum: DCMTK - General
Topic: 12 bit dicom data
Replies: 1
Views: 4374

Basically you access the raw pixel data in the same way you handle 16 bit greyscale. You then have to mask out the unused bits (which might contain bitmap overlays or just garbage), right-shift if necessary to make sure that the LSB is 0 (which is the case anyway in your example) and extend the sign...
by Marco Eichelberg
Fri, 2005-05-13, 09:16
Forum: DCMTK - General
Topic: Patient data Perl script WLM
Replies: 3
Views: 6518

Possibly an access right problem? Does the user under which the Perl scripts and the "wwwapps" are run have read and write access to the .wl files?
by Marco Eichelberg
Thu, 2005-05-12, 12:37
Forum: DCMTK - General
Topic: interpolation crashes
Replies: 6
Views: 7206

Fine. Please send a mail to dicom <at> offis <dot> de, containing either the problematic image or a line telling us that you prefer an FTP account, which we would create then.
by Marco Eichelberg
Mon, 2005-05-09, 09:58
Forum: DCMTK - General
Topic: generate sr from xml
Replies: 3
Views: 5523

You need to link against the libxml libraries, and these have to be generated using the same code generation options. Nopbody said that a developer's life is always easy :wink:
by Marco Eichelberg
Mon, 2005-05-09, 09:56
Forum: DCMTK - General
Topic: interpolation crashes
Replies: 6
Views: 7206

Could you provide a sample image that allows to reproduce the problem (we can provide a password protected FTP account if necessary). Please also specify some details about your devlopement and execution environment: Which OS, which compiler, which additional libraries used etc.
by Marco Eichelberg
Wed, 2005-05-04, 12:52
Forum: DCMTK - Installation
Topic: Dicom Services as Daemon
Replies: 1
Views: 4544

None of the DCMTK tools can be started from inetd. Most of them, however, can be installed suid root and started from a non-root user. In this case they will open the listen socket (which may be privileged) and will then revert to the effective uid of the calling user. With the next release, imagect...