Hello,
I am using a private Orthanc instance to store interesting cases.
In order to keep the space usage low, I would like to use .81 transfer syntax (JPEG-LS near lossless) as it provides good compression ratio, fast compression and good image quality.
However, I noticed that ingest transcoding fails for some files and I do not understand why.
Please find the error below:
I1202 13:01:50.048142 HTTP-7 OrthancRestApi.cpp:164] (http) Receiving a DICOM file of 619.09KB through HTTP
I1202 13:01:50.048231 HTTP-7 ServerContext.cpp:2072] The installed transcoding plugins cannot handle an image, fallback to the built-in DCMTK transcoder
I1202 13:01:50.048486 HTTP-7 DcmtkTranscoder.cpp:372] DCMTK transcoding from 1.2.840.10008.1.2.1 to one of: 1.2.840.10008.1.2.4.81
W1202 13:01:50.048535 HTTP-7 DcmtkTranscoder.cpp:419] DCMTK was unable to transcode from 1.2.840.10008.1.2.1 to one of: 1.2.840.10008.1.2.4.81 Internal error while transcoding to 1.2.840.10008.1.2.4.81
I1202 13:01:50.050581 HTTP-7 FilesystemStorage.cpp:128] Creating attachment “75c9972c-5007-4068-8759-faf0cec7146e” of “DICOM” type
I1202 13:01:50.055608 HTTP-7 FilesystemStorage.cpp:176] Created attachment “75c9972c-5007-4068-8759-faf0cec7146e” (619.09KB in 5.06ms = 1.00Gbps)
I am using the podman container of orthancteam,
these are my storage environment variables:
ORTHANC__STORAGE_COMPRESSION=false
ORTHANC__OVERWRITE_INSTANCES=true
ORTHANC__DICOM_WEB__SERIES_METADATA=Full
ORTHANC__DICOM_WEB__STUDIES_METADATA=Full
ORTHANC__DICOM_WEB__METADATA_WORKER_THREADS_COUNT=4
ORTHANC__INGEST_TRANSCODING=1.2.840.10008.1.2.4.81
ORTHANC__INGEST_TRANSCODING_OF_COMPRESSED=false
ORTHANC__INGEST_TRANSCODING_OF_UNCOMPRESSED=true
Any suggestions?
Kind regards,
Ruediger