Issue100

Title Compressed file preview "Unsupported" while Osimis/Orthanc Viewer and API OK
Priority bug Status resolved
Superseder Nosy List admin
Assigned To
Keywords Orthanc Explorer 1

Created on 2018-08-10.16:44:58 by admin, last changed by admin.

Files
File name Uploaded Type Edit Remove
IM-0001-0009.zip admin, 2020-06-29.15:18:07 application/zip
Messages
msg457 (view) Author: admin Date: 2018-08-10.16:44:58 
[BitBucket date: 2018-08-10.14:44:58]

Hi all,

I think I found a bug, using the latest release of orthanc with the latest Osimis windows package.
I have a compressed DICOM study, the "preview" button of Orthanc Expolorer send back "Unsupported" logo while there is no problem to read the images in Orthanc/Osimis viewer.

Sounds like orthanc API have no problem to read the images with GDCM installed but the orthanc explorer fails to get the images.

Best regards,
Salim
msg458 (view) Author: admin Date: 2020-06-29.15:18:07 
[Bugzilla user: s.jodogne@gmail.com]
[Bugzilla date: 2020-06-29T13:18:07+00:00]

Created attachment 71
IM-0001-0009.zip
msg459 (view) Author: admin Date: 2018-08-10.16:47:13 
[BitBucket user: Salim Kanoun]
[BitBucket date: 2018-08-10.14:47:13]
msg460 (view) Author: admin Date: 2018-09-04.13:13:08 
[BitBucket user: Sébastien Jodogne]
[BitBucket date: 2018-09-04.11:13:08]

Hello, these images have the transfer syntax "1.2.840.10008.1.2.4.91", which corresponds to JPEG 2000. Orthanc does not natively support the decoding of JPEG 2000 images: It requires the presence of a custom decoder for DICOM images (check out SDK function "OrthancPluginRegisterDecodeImageCallback()"). Installing the Orthanc Web viewer plugin or the Osimis Web viewer plugin installs such a custom decoder that is built on the top of GDCM (http://gdcm.sourceforge.net/). This explains why Orthanc Explorer shows "Unsupported" as long as neither of those plugins is installed.
History
Date User Action Args
2026-07-29 15:51:22admincreate