/// <summary>
/// Create a copy of the specified DICOM file with requested transfer syntax.
/// </summary>
/// <param name="file">DICOM file to copy.</param>
/// <param name="syntax">Requested transfer syntax for the created DICOM file.</param>
/// <param name="parameters">Codec parameters.</param>
/// <returns>DICOM file with modified transfer syntax.</returns>
public static DicomFile ChangeTransferSyntax(
this DicomFile file,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
var transcoder = new DicomTranscoder(file.FileMetaInfo.TransferSyntax, syntax, parameters, parameters);
return transcoder.Transcode(file);
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomRleNativeCodec.Encode(oldPixelData.ToNativePixelData(), newPixelData.ToNativePixelData());
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpegCodecImpl.Encode(oldPixelData, newPixelData, parameters as DicomJpegParams);
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomRleNativeCodec.Encode(oldPixelData.ToNativePixelData(), newPixelData.ToNativePixelData());
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpegCodecImpl.Encode(oldPixelData, newPixelData, parameters as DicomJpegParams);
}
/// <summary>
/// Create a copy of the specified DICOM dataset with requested transfer syntax.
/// </summary>
/// <param name="dataset">DICOM dataset to copy.</param>
/// <param name="syntax">Requested transfer syntax for the created DICOM dataset.</param>
/// <param name="parameters">Codec parameters.</param>
/// <returns>DICOM dataset with modified transfer syntax.</returns>
public static DicomDataset ChangeTransferSyntax(
this DicomDataset dataset,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
var transcoder = new DicomTranscoder(dataset.InternalTransferSyntax, syntax, parameters, parameters);
return transcoder.Transcode(dataset);
}
/// <summary>
/// Create a copy of the specified DICOM file with requested transfer syntax.
/// </summary>
/// <param name="file">DICOM file to copy.</param>
/// <param name="syntax">Requested transfer syntax for the created DICOM file.</param>
/// <param name="parameters">Codec parameters.</param>
/// <returns>DICOM file with modified transfer syntax.</returns>
public static DicomFile ChangeTransferSyntax(
this DicomFile file,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
var transcoder = new DicomTranscoder(file.FileMetaInfo.TransferSyntax, syntax, parameters, parameters);
return(transcoder.Transcode(file));
}
/// <summary>
/// Create a copy of the specified DICOM dataset with requested transfer syntax.
/// </summary>
/// <param name="dataset">DICOM dataset to copy.</param>
/// <param name="syntax">Requested transfer syntax for the created DICOM dataset.</param>
/// <param name="parameters">Codec parameters.</param>
/// <returns>DICOM dataset with modified transfer syntax.</returns>
public static DicomDataset ChangeTransferSyntax(
this DicomDataset dataset,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
var transcoder = new DicomTranscoder(dataset.InternalTransferSyntax, syntax, parameters, parameters);
return(transcoder.Transcode(dataset));
}
public override void Decode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpegLsNativeCodec.Decode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpegLSParameters());
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpeg2000NativeCodec.Encode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpeg2000Parameters());
}
public static DicomDataset ChangeTransferSyntax(
this DicomDataset dataset,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
DicomTranscoder transcoder = new DicomTranscoder(dataset.InternalTransferSyntax, syntax);
transcoder.InputCodecParams = parameters;
transcoder.OutputCodecParams = parameters;
return transcoder.Transcode(dataset);
}
public static DicomFile ChangeTransferSyntax(
this DicomFile file,
DicomTransferSyntax syntax,
DicomCodecParams parameters = null)
{
DicomTranscoder transcoder = new DicomTranscoder(file.FileMetaInfo.TransferSyntax, syntax);
transcoder.InputCodecParams = parameters;
transcoder.OutputCodecParams = parameters;
return transcoder.Transcode(file);
}
public override void Decode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpegLsNativeCodec.Decode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpegLSParameters());
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
DicomJpeg2000NativeCodec.Encode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpeg2000Parameters());
}
/// <summary>
/// Loads the pixel data for specified frame and set the internal dataset
///
/// </summary>
/// <param name="dataset">dataset to load pixeldata from</param>
/// <param name="frame">The frame number to create pixeldata for</param>
private void Load(DicomDataset dataset, int frame)
{
Dataset = dataset;
if (PixelData == null)
{
PixelData = DicomPixelData.Create(Dataset);
PhotometricInterpretation = PixelData.PhotometricInterpretation;
}
if (Dataset.InternalTransferSyntax.IsEncapsulated)
{
// decompress single frame from source dataset
DicomCodecParams cparams = null;
if (Dataset.InternalTransferSyntax == DicomTransferSyntax.JPEGProcess1 || Dataset.InternalTransferSyntax == DicomTransferSyntax.JPEGProcess2_4)
{
cparams = new DicomJpegParams {
ConvertColorspaceToRGB = true
};
}
var transcoder = new DicomTranscoder(Dataset.InternalTransferSyntax, DicomTransferSyntax.ExplicitVRLittleEndian);
transcoder.InputCodecParams = cparams;
transcoder.OutputCodecParams = cparams;
var buffer = transcoder.DecodeFrame(Dataset, frame);
// clone the dataset because modifying the pixel data modifies the dataset
var clone = Dataset.Clone();
clone.InternalTransferSyntax = DicomTransferSyntax.ExplicitVRLittleEndian;
var pixelData = DicomPixelData.Create(clone, true);
pixelData.AddFrame(buffer);
// temporary fix for JPEG compressed YBR images
if ((Dataset.InternalTransferSyntax == DicomTransferSyntax.JPEGProcess1 || Dataset.InternalTransferSyntax == DicomTransferSyntax.JPEGProcess2_4) && pixelData.SamplesPerPixel == 3)
{
pixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
_pixelData = PixelDataFactory.Create(pixelData, 0);
}
else
{
// pull uncompressed frame from source pixel data
_pixelData = PixelDataFactory.Create(PixelData, frame);
}
_pixelData.Rescale(_scale);
_overlays = DicomOverlayData.FromDataset(Dataset).Where(x => x.Type == DicomOverlayType.Graphics && x.Data != null).ToArray();
_currentFrame = frame;
CreatePipeline();
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
#if NETFX_CORE && !HOLOLENS
DicomJpeg2000NativeCodec.Encode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpeg2000Parameters());
#else
DicomJpeg2000CodecImpl.Encode(oldPixelData, newPixelData, parameters as DicomJpeg2000Params);
#endif
}
public override void Encode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters)
{
#if NETFX_CORE
DicomJpeg2000NativeCodec.Encode(
oldPixelData.ToNativePixelData(),
newPixelData.ToNativePixelData(),
parameters.ToNativeJpeg2000Parameters());
#else
DicomJpeg2000CodecImpl.Encode(oldPixelData, newPixelData, parameters as DicomJpeg2000Params);
#endif
}
public static NativeJpegLSParameters ToNativeJpegLSParameters(this DicomCodecParams codecParams)
{
var jlsParams = codecParams as DicomJpegLsParams;
if (jlsParams == null)
{
return(null);
}
return(new NativeJpegLSParameters
{
AllowedError = jlsParams.AllowedError,
InterleaveMode = (int)jlsParams.InterleaveMode,
ColorTransform = (int)jlsParams.ColorTransform
});
}
/// <summary>
/// The JPEG-LS decoding function
/// </summary>
/// <param name="oldPixelData">The old pixel data</param>
/// <param name="newPixelData">The new pixel data</param>
/// <param name="parameters">The compression parameters</param>
public override void Decode(DicomPixelData oldPixelData, DicomPixelData newPixelData,
DicomCodecParams parameters)
{
for (var frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
var jpegLsData = oldPixelData.GetFrame(frame);
var message = String.Empty;
var jpegLsParams = new JlsParameters();
var frameData = new byte[newPixelData.UncompressedFrameSize];
var err = JpegLs.Decode(frameData, jpegLsData.Data, jpegLsParams, out message);
var buffer = frameData.Length >= 1 * 1024 * 1024 || oldPixelData.NumberOfFrames > 1
? (IByteBuffer) new TempFileBuffer(frameData)
: new MemoryByteBuffer(frameData);
newPixelData.AddFrame(EvenLengthBuffer.Create(buffer));
}
}
public static NativeJpegParameters ToNativeJpegParameters(this DicomCodecParams codecParams)
{
var jpegParams = codecParams as DicomJpegParams;
if (jpegParams == null)
{
return(null);
}
return(new NativeJpegParameters
{
Quality = jpegParams.Quality,
SmoothingFactor = jpegParams.SmoothingFactor,
ConvertColorspaceToRGB = jpegParams.ConvertColorspaceToRGB,
SampleFactor = (int)jpegParams.SampleFactor,
Predictor = jpegParams.Predictor,
PointTransform = jpegParams.PointTransform
});
}
public static NativeJpeg2000Parameters ToNativeJpeg2000Parameters(this DicomCodecParams codecParams)
{
var jp2Params = codecParams as DicomJpeg2000Params;
if (jp2Params == null)
{
return(null);
}
return(new NativeJpeg2000Parameters
{
Irreversible = jp2Params.Irreversible,
Rate = jp2Params.Rate,
RateLevels = jp2Params.RateLevels,
AllowMCT = jp2Params.AllowMCT,
EncodeSignedPixelValuesAsUnsigned = jp2Params.EncodeSignedPixelValuesAsUnsigned,
IsVerbose = jp2Params.IsVerbose,
UpdatePhotometricInterpretation = jp2Params.UpdatePhotometricInterpretation
});
}
public override unsafe void Encode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
throw new InvalidOperationException("Unsupported OS Platform");
}
if ((oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrPartial422) ||
(oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrPartial420))
{
throw new DicomCodecException("Photometric Interpretation '{0}' not supported by JPEG-LS encoder", oldPixelData.PhotometricInterpretation);
}
DicomJpegLsParams jparams = (DicomJpegLsParams)parameters;
if (jparams == null)
{
jparams = (DicomJpegLsParams)GetDefaultParameters();
}
//IMPORT JLSPARAMETERS (DLLIMPORT)
JlsParameters jls = new JlsParameters
{
width = oldPixelData.Width,
height = oldPixelData.Height,
bitsPerSample = oldPixelData.BitsStored,
stride = oldPixelData.BytesAllocated * oldPixelData.Width * oldPixelData.SamplesPerPixel,
components = oldPixelData.SamplesPerPixel,
interleaveMode = oldPixelData.SamplesPerPixel == 1
? CharlsInterleaveModeType.None
: oldPixelData.PlanarConfiguration == PlanarConfiguration.Interleaved
? CharlsInterleaveModeType.Sample
: CharlsInterleaveModeType.Line,
colorTransformation = CharlsColorTransformationType.None
};
if (TransferSyntax == DicomTransferSyntax.JPEGLSNearLossless)
{
jls.allowedLossyError = jparams.AllowedError;
}
for (int frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
IByteBuffer frameData = oldPixelData.GetFrame(frame);
//Converting photmetricinterpretation YbrFull or YbrFull422 to RGB
if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull)
{
frameData = PixelDataConverter.YbrFullToRgb(frameData);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
else if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull422)
{
frameData = PixelDataConverter.YbrFull422ToRgb(frameData, oldPixelData.Width);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
PinnedByteArray frameArray = new PinnedByteArray(frameData.Data);
byte[] jpegData = new byte[frameData.Size];
PinnedByteArray jpegArray = new PinnedByteArray(jpegData);
uint jpegDataSize = 0;
char[] errorMessage = new char[256];
// IMPORT JpegLsEncode
unsafe {
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
CharlsApiResultType err = JpegLSEncode_Linux64((void *)jpegArray.Pointer, checked ((uint)jpegArray.Count), &jpegDataSize, (void *)frameArray.Pointer, checked ((uint)frameArray.Count), ref jls, errorMessage);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
CharlsApiResultType err = JpegLSEncode_Windows64((void *)jpegArray.Pointer, checked ((uint)jpegArray.Count), &jpegDataSize, (void *)frameArray.Pointer, checked ((uint)frameArray.Count), ref jls, errorMessage);
}
Array.Resize(ref jpegData, (int)jpegDataSize);
IByteBuffer buffer;
if (jpegDataSize >= (1 * 1024 * 1024) || oldPixelData.NumberOfFrames > 1)
{
buffer = new TempFileBuffer(jpegData);
}
else
{
buffer = new MemoryByteBuffer(jpegData);
}
buffer = EvenLengthBuffer.Create(buffer);
newPixelData.AddFrame(buffer);
}
}
}
public abstract void Decode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters);
static public DicomDataset Compress(this DicomDataset original, DicomTransferSyntax dicomTransferSyntax, IDicomCodec codec, DicomCodecParams jpegParams)
{
DicomDataset dataset = new DicomDataset(dicomTransferSyntax);
original.CopyTo(dataset);
DicomPixelData pixelData = DicomPixelData.Create(dataset, true);
DicomPixelData pixelDataSource = DicomPixelData.Create(original, false);
codec.Encode(pixelDataSource, pixelData, jpegParams);
return(dataset);
}
public override void Encode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
throw new DicomCodecException($"Encoding of transfersyntax {TransferSyntax} is not supported");
}
public override void Decode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
for (var frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
var encodedData = oldPixelData.GetFrame(frame);
var decodedData = ReadImage(encodedData);
newPixelData.AddFrame(new StreamByteBuffer(decodedData, 0, (uint)decodedData.Length));
}
}
public abstract void Decode(
DicomPixelData oldPixelData,
DicomPixelData newPixelData,
DicomCodecParams parameters);
/// <summary>
/// The encoding function, which is not implemented, since this application is
/// not encoding anything to JPEG-LS
/// </summary>
/// <param name="oldPixelData">The old pixel data</param>
/// <param name="newPixelData">The new pixel data</param>
/// <param name="parameters">The compression parameters</param>
public override void Encode(DicomPixelData oldPixelData, DicomPixelData newPixelData,
DicomCodecParams parameters)
{
throw new DicomCodecException(String.Format("Encoding of transfer syntax {0} is not implemented",
TransferSyntax));
}
private void ChangeSyntax(DicomTransferSyntax syntax, DicomCodecParams param = null)
{
var file = _file.Clone(syntax, param);
OpenFile(file);
}
public override void Decode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
throw new InvalidOperationException("Unsupported OS Platform");
}
for (int frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
IByteBuffer jpegData = oldPixelData.GetFrame(frame);
//Converting photmetricinterpretation YbrFull or YbrFull422 to RGB
if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull)
{
jpegData = PixelDataConverter.YbrFullToRgb(jpegData);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
else if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull422)
{
jpegData = PixelDataConverter.YbrFull422ToRgb(jpegData, oldPixelData.Width);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
PinnedByteArray jpegArray = new PinnedByteArray(jpegData.Data);
byte[] frameData = new byte[newPixelData.UncompressedFrameSize];
PinnedByteArray frameArray = new PinnedByteArray(frameData);
JlsParameters jls = new JlsParameters();
char[] errorMessage = new char[256];
// IMPORT JpegLsDecode
unsafe
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
CharlsApiResultType err = JpegLSDecode_Linux64((void *)frameArray.Pointer, frameData.Length, (void *)jpegArray.Pointer, Convert.ToUInt32(jpegData.Size), ref jls, errorMessage);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
CharlsApiResultType err = JpegLSDecode_Windows64((void *)frameArray.Pointer, frameData.Length, (void *)jpegArray.Pointer, Convert.ToUInt32(jpegData.Size), ref jls, errorMessage);
}
IByteBuffer buffer;
if (frameData.Length >= (1 * 1024 * 1024) || oldPixelData.NumberOfFrames > 1)
{
buffer = new TempFileBuffer(frameData);
}
else
{
buffer = new MemoryByteBuffer(frameData);
}
buffer = EvenLengthBuffer.Create(buffer);
newPixelData.AddFrame(buffer);
}
}
}
