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fo-dicom.Codecs

NuGet downloads github build

fo-dicom logo Efferent logo

This is collaborative project mantained by Fellow Oak Dicom and Efferent Health, LLC. The codecs in this repository are written in pure C/C++ code and wrapped with C# and netstandard2.0. The supported platforms so far are:

OS   x64   Arm64 Tested with
Windows ✅ Windows 10/11
Linux ✅ ✅ Ubuntu 18/20/22
MacOS ✅ ✅ Ventura/Sonoma

Supported CODECs

The following CODECS are implemented:

Transfer Syntax UID Description
1.2.840.10008.1.2.5 RLE Lossless
1.2.840.10008.1.2.4.50 JPEG Baseline (Process 1): Default Transfer Syntax for Lossy JPEG 8 Bit Image Compression
1.2.840.10008.1.2.4.51 JPEG Extended (Process 2 & 4): Default Transfer Syntax for Lossy JPEG 12 Bit Image Compression (Process 4 only)
1.2.840.10008.1.2.4.57 JPEG Lossless, Non-Hierarchical (Process 14)
1.2.840.10008.1.2.4.70 JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [Selection Value 1]): Default Transfer Syntax for Lossless JPEG Image Compression
1.2.840.10008.1.2.4.80 JPEG-LS Lossless Image Compression
1.2.840.10008.1.2.4.81 JPEG-LS Lossy (Near-Lossless) Image Compression
1.2.840.10008.1.2.4.90 JPEG 2000 Image Compression (Lossless Only)
1.2.840.10008.1.2.4.91 JPEG 2000 Image Compression
1.2.840.10008.1.2.4.201 High-Throughput JPEG 2000 Image Compression (Lossless Only)
1.2.840.10008.1.2.4.202 High-Throughput JPEG 2000 with RPCL Options Image Compression (Lossless Only)
1.2.840.10008.1.2.4.203 High-Throughput JPEG 2000 Image Compression

The HT-JPEG2000 family of codecs is only supported since fo-dicom version 5.1.3

Usage

With fo-dicom 4.x

  • Add the nuget package to your .NET Standard or .NET Core project (minimum version is 2.0)
  • Add the standard fo-dicom nuget packages to your project (version 4.x)
  • At the beginning of your application, replace the transcoder manager, as: 
    Dicom.Imaging.Codec.TranscoderManager.SetImplementation(new Dicom.Imaging.NativeCodec.NativeTranscoderManager());

With fo-dicom 5.x

  • Add the nuget package to your .NET Standard or .NET project (minimum version is .NET 5.0)
  • Add the standard fo-dicom nuget packages to your project (version 5.x)
  • At the beginning of your application, replace the transcoder manager, as: 
    new DicomSetupBuilder()
  .RegisterServices(s => s.AddFellowOakDicom().AddTranscoderManager<FellowOakDicom.Imaging.NativeCodec.NativeTranscoderManager>())
  .SkipValidation()
  .Build();

Dependencies

Windows

It is required to have Visual C++ Redistributable v14 installed in the target Windows machine. Otherwise, it will throw a runtime error:

Unable to load DLL 'Dicom.Native': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

The installer can be downloaded directly from https://aka.ms/vs/17/release/vc_redist.x64.exe

Linux

The native library has been built on an Ubuntu 20.04 environment using GNU C Compiler version 9.4.x.

Therefore, it requires a GLIBC library runtime version 2.27 and GLIBCXX version 3.4. Otherwise, it can throw a runtime error like:

Unhandled Exception: System.DllNotFoundException: Unable to load shared library 'Dicom.Native.so' or one of its dependencies.