DICOM @ OFFIS

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 Forum: DCMTK - General   Topic: dcmj2pnm segfault with large multiframe US

Posted: Thu, 2017-09-28, 14:15 

Replies: 20
Views: 170


The bug has been registered in our bug tracker as issue #793: http://support.dcmtk.org/redmine/issues/793

 Forum: DCMTK - General   Topic: dcmj2pnm segfault with large multiframe US

Posted: Thu, 2017-09-28, 14:05 

Replies: 20
Views: 170


It seems that you have found a bug in DCMTK here. The sample image you sent cannot be converted to an uncompressed DICOM format because the pixel data would be larger than 4 GBytes (1802 frames, 1280x960, RGB results in ca. 6.3 GBytes uncompressed). The dcmj2pnm tool is not too clever when it comes ...

 Forum: DCMTK - General   Topic: improving DIMSE_createFilestream

Posted: Mon, 2017-09-25, 16:48 

Replies: 1
Views: 62


Thanks for the suggestion. I have put that as a feature request http://support.dcmtk.org/redmine/issues/791 into our bugtracker.
However, this will not likely be implemented soon.

 Forum: DCMTK - General   Topic: Error while writing private tags in DcmDataset

Posted: Fri, 2017-08-18, 15:19 

Replies: 2
Views: 320


Lookup of Value Representations based on a private creator is not active when you create a dataset.
You have to include the VR explicitly in your call to putAndInsertString, just as you do here:
Code:
putAndInsertString(DcmTag(0x0029, 0x0010,EVR_LO), "mycomp")

 Forum: Other DICOM Tools   Topic: having trouble decoding an image with dcmdjp2k

Posted: Tue, 2017-08-15, 10:54 

Replies: 1
Views: 163


The dcmdjp2k tool is part of the DCMJP2K library, which is indeed a licensed product that extends DCMTK with JPEG 2000 support. The latest version is 3.6.2 (just as for the toolkit), but I don't think that any change to the JPEG 2000 decoder has taken place since the release mentioned in your post. ...

 Forum: DCMTK - General   Topic: Image displays white-out

Posted: Tue, 2017-08-15, 10:47 

Replies: 1
Views: 154


The image has a contrast depth of 16 bit/pixel (BitsStored = 16). A Windows DIB only offers 8 bit/pixel monochrome, so a reduction takes place during the conversion. You have to apply the VOI LUT transformation (e.g. based on the parameters Window Center and Window Width encoded in the image) to get...

 Forum: DCMTK - General   Topic: JPEG Lossless compression with bit-depth=12 possible?

Posted: Tue, 2017-08-15, 10:43 

Replies: 3
Views: 172


The bit depth is encoded in the JPEG bitstream, so the decoder can (and has to) determine from there what to do. Since the process you are referring to is lossless, In both cases the pixel data will be compressed without modification. With regard to the fact that DCMTK selects the 16 bit process in ...

 Forum: DCMTK - General   Topic: Issue with constructing cine loop from still images

Posted: Fri, 2017-07-28, 11:30 

Replies: 1
Views: 155


Perhaps your second frame image contains trailing "garbage" bytes at the end of the pixel data element, which would cause the effect you describe. You should perhaps compare the size of the PixelData element with the expected size (Rows * Columns * (BitsAllocated+7)/8). If the real size is...

 Forum: DCMTK - General   Topic: TLS question need help

 Post subject: Re: TLS question need help
Posted: Fri, 2017-07-28, 11:26 

Replies: 2
Views: 154


By default, the TLS protocol does not only use the public/private key pair extracted from the certificate and key file to securely exchange the random session key, it also verifies whether the certificate that is used by the remote side to identify itself is trustable. A certificate is trustable if ...

 Forum: DCMTK - General   Topic: socket select timeout

 Post subject: Re: socket select timeout
Posted: Mon, 2017-05-01, 16:59 

Replies: 11
Views: 2790


Your patch (with some minor modifications) has now been committed as commit 4185380, which should appear in the public git repository in a couple of days.

 Forum: DCMTK - General   Topic: DCMTK listed in the TMF "ToolPool"

Posted: Sat, 2017-04-01, 12:04 

Replies: 0
Views: 294


Image
DCMTK is listed in the TMF "ToolPool" database, a portal for IT tools for medical research that was launched in March 2017. TMF is the umbrella organization for networked medical research in Germany.

 Forum: DCMPRINT   Topic: DCMPRINT on GE Logic E9

 Post subject: Re: DCMPRINT on GE Logic E9
Posted: Mon, 2017-01-30, 11:44 

Replies: 1
Views: 518


To get debug output, just run tcpsrv with --debug as (additional) command line parameter and redirect output to a file.
It will not be possible to analyze the problem without this debug log, which contains all DICOM messages exchanged between print client and print server.

 Forum: DCMTK - General   Topic: Might be more programming question....

Posted: Sat, 2017-01-28, 17:49 

Replies: 1
Views: 205


What you are trying to do will indeed require some programming; I don't think you can do that with the existing command line tools and a script/batch file. It should, however, be rather easy to add a function to storescu (possibly depending on a command line option) that deletes each file that store...

 Forum: DCMTK - General   Topic: DCmtk tool support for Storage commitment and MPPS SCP

Posted: Sat, 2017-01-28, 17:45 

Replies: 1
Views: 228


The free part of DCMTK does not provide an MPPS SCP or a Storage Commitment SCP. An MPPS SCP is available as one of the DCMTK extension modules that can be licensed commercially (with or without source code). This module is called "DCMPPS", see http://dicom.offis.de/dcmpps.php.en Unfortuna...

 Forum: DCMTK - General   Topic: Radiation Dose SR Storage with Dcmtk

Posted: Sat, 2017-01-28, 17:42 

Replies: 1
Views: 177


Yes, it does.
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