public IList <IStorageLocation> CreateMedia(DicomFile data)
{
if (null != MediaStorage)
{
string key = null;
int framesCount = 1;
List <IStorageLocation> locations = new List <IStorageLocation> ( );
if (StoreMultiFrames)
{
DicomPixelData pd;
pd = DicomPixelData.CreateFrom(data);
framesCount = pd.NumberOfFrames;
}
for (int frame = 1; frame <= framesCount; frame++)
{
var storeLocation = MediaStorage.GetLocation(new DicomMediaId(data.DataSet, frame, MediaType));
Upload(data, frame, storeLocation);
locations.Add(storeLocation);
}
return(locations);
}
throw new InvalidOperationException("No MediaStorage service found");
}
public DicomPixelData GetPixelData(string seriesInstanceUid, string sopInstanceUid)
{
DicomPixelData pd = null;
for (int i = 0; i < 5; i++)
{
// look at the cache first
pd = DicomPixelDataCache.Find(_storage, _storage.StudyInstanceUid, seriesInstanceUid, sopInstanceUid);
if (pd != null)
{
break;
}
try
{
pd = DicomPixelData.CreateFrom(_storage.GetSopInstancePath(seriesInstanceUid, sopInstanceUid), DicomReadOptions.StorePixelDataReferences);
DicomPixelDataCache.Insert(_storage, _storage.StudyInstanceUid, seriesInstanceUid, sopInstanceUid, pd);
break;
}
catch (FileNotFoundException)
{
throw;
}
catch (IOException)
{
var rand = new Random();
Thread.Sleep(rand.Next(100, 500));
}
}
return(pd);
}
public static void LosslessImageTestWithConversion(TransferSyntax syntax, DicomFile theFile)
{
if (File.Exists(theFile.Filename))
{
File.Delete(theFile.Filename);
}
DicomFile saveCopy = new DicomFile(theFile.Filename, theFile.MetaInfo.Copy(), theFile.DataSet.Copy());
theFile.ChangeTransferSyntax(syntax);
theFile.Save(DicomWriteOptions.ExplicitLengthSequence);
DicomFile newFile = new DicomFile(theFile.Filename);
newFile.Load(DicomReadOptions.Default);
newFile.ChangeTransferSyntax(saveCopy.TransferSyntax);
string failureDescription;
bool result = Compare(DicomPixelData.CreateFrom(newFile),
DicomPixelData.CreateFrom(saveCopy), out failureDescription);
Assert.IsTrue(result, failureDescription);
Assert.IsFalse(newFile.DataSet.Equals(saveCopy.DataSet));
}
public void SavePixels(string filename)
{
DicomPixelData pd = DicomPixelData.CreateFrom(_dicomFile);
if (File.Exists(filename))
{
File.Delete(filename);
}
using (FileStream fs = new FileStream(filename, FileMode.CreateNew))
{
byte[] ba;
DicomCompressedPixelData compressed = pd as DicomCompressedPixelData;
if (compressed != null)
{
ba = compressed.GetFrameFragmentData(0);
}
else
{
ba = pd.GetFrame(0);
}
fs.Write(ba, 0, ba.Length);
fs.Flush();
fs.Close();
}
}
protected override void Upload(DicomFile dicomObject, int frame, IStorageLocation storeLocation)
{
DicomPixelData pd = null;
byte[] buffer = null;
pd = DicomPixelData.CreateFrom(dicomObject);
buffer = pd.GetFrame(frame - 1);
storeLocation.Upload(buffer);
}
public ImageStreamingContext(HttpListenerContext context)
{
Request = context.Request;
Response = context.Response;
NameValueCollection query = Request.QueryString;
#region INIT STUFF FOR PERFORMANCE TESTING
#if DEBUG
if (query["testcompressed"] != null)
{
testCompressed = true;
}
else if (query["testuncompressed"] != null)
{
testUncompressed = true;
}
if (_testCompressedImage == null)
{
using (Stream stream = typeof(ImageStreamingContext).Assembly.GetManifestResourceStream("Macro.ImageServer.Services.Streaming.ImageStreaming.Test.TestSamples.compressed.dcm"))
{
DicomFile file = new DicomFile();
file.Load(stream);
_testCompressedImage = DicomPixelData.CreateFrom(file);
}
}
if (_testUncompressedImage == null)
{
using (Stream stream = typeof(ImageStreamingContext).Assembly.GetManifestResourceStream("Macro.ImageServer.Services.Streaming.ImageStreaming.Test.TestSamples.uncompressed.dcm"))
{
DicomFile file = new DicomFile();
file.Load(stream);
_testUncompressedImage = DicomPixelData.CreateFrom(file);
}
}
#endif
#endregion
_frameNumber = 0;
if (query["FrameNumber"] != null)
{
int.TryParse(query["FrameNumber"], out _frameNumber);
}
_nextSeriesUid = query["nextSeriesUid"];
_nextSopUid = query["nextObjectUid"];
}
public DicomPixelData GetPixelData(string seriesInstanceUid, string sopInstanceUid, string nextSeriesInstanceUid, string nextSopInstanceUid)
{
DicomPixelData pd = null;
for (int i = 0; i < 5; i++)
{
// look at the cache first
pd = DicomPixelDataCache.Find(_storage, _storage.StudyInstanceUid, seriesInstanceUid, sopInstanceUid);
if (pd != null)
{
break;
}
// Check if the file has been requested to open by the client
string key = string.Format("ImageStreamPrefetchStream/{0}/{1}/{2}/{3}",
_storage.ServerPartition.AeTitle, _storage.StudyInstanceUid,
seriesInstanceUid, sopInstanceUid);
Stream preopenStream = HttpRuntime.Cache[key] as Stream;
if (preopenStream != null)
{
pd = DicomPixelData.CreateFrom(_storage.GetSopInstancePath(seriesInstanceUid, sopInstanceUid), preopenStream, DicomReadOptions.StorePixelDataReferences);
DicomPixelDataCache.Insert(_storage, _storage.StudyInstanceUid, seriesInstanceUid, sopInstanceUid, pd);
preopenStream.Close();
HttpRuntime.Cache.Remove(key);
break;
}
else
{
try
{
pd = DicomPixelData.CreateFrom(_storage.GetSopInstancePath(seriesInstanceUid, sopInstanceUid),
DicomReadOptions.StorePixelDataReferences);
DicomPixelDataCache.Insert(_storage, _storage.StudyInstanceUid, seriesInstanceUid, sopInstanceUid, pd);
break;
}
catch (FileNotFoundException)
{
throw;
}
catch (IOException)
{
Random rand = new Random();
Thread.Sleep(rand.Next(100, 500));
}
}
}
OnPixelDataLoaded(sopInstanceUid, nextSeriesInstanceUid, nextSopInstanceUid);
return(pd);
}
public Stream Convert(DicomAttributeCollection ds)
{
DicomAttributeCollection command = new DicomAttributeCollection();
command[DicomTags.TransferSyntaxUid] = ds[DicomTags.TransferSyntaxUid];
DicomMessage message = new DicomMessage(command, ds);
DicomPixelData pd = DicomPixelData.CreateFrom(message);
string tempFile = System.IO.Path.GetTempFileName( );
System.IO.File.WriteAllBytes(tempFile, pd.GetFrame(0));
return(new DICOMcloud.Core.Storage.TempStream(new TempFile(tempFile)));
}
protected override void Upload(DicomFile dicomObject, int frame, IStorageLocation storeLocation)
{
var frameIndex = frame - 1;
if (dicomObject.TransferSyntax == TransferSyntax.JpegBaselineProcess1)
{
DicomCompressedPixelData pd = DicomPixelData.CreateFrom(dicomObject) as DicomCompressedPixelData;
byte[] buffer = pd.GetFrameFragmentData(frameIndex);
storeLocation.Upload(buffer);
}
else if (false) //TODO: handle compressed images properly!
{
DicomFile dcmJpeg = new DicomFile( );
DicomUncompressedPixelData unCompressed = DicomPixelData.CreateFrom(dicomObject) as DicomUncompressedPixelData;
DicomCompressedPixelData compressed = new DicomCompressedPixelData(unCompressed);
//compressed.ImageWidth = unCompressed.ImageWidth;
//compressed.ImageHeight = unCompressed.HighBit;
compressed.BitsStored = 8;
compressed.BitsAllocated = 8;
//compressed.HighBit = 7;
compressed.SamplesPerPixel = 3;
//compressed.PlanarConfiguration = 0;
compressed.PhotometricInterpretation = "YBR_FULL_422";
compressed.TransferSyntax = TransferSyntax.JpegBaselineProcess1;
byte[] imageBuffer = unCompressed.GetFrame(frameIndex);
compressed.AddFrameFragment(imageBuffer);
compressed.UpdateMessage(dcmJpeg);
storeLocation.Upload(compressed.GetFrame(frameIndex));
//ClearCanvas.Dicom.Codec.Jpeg.Jpeg8Codec codec = new ClearCanvas.Dicom.Codec.Jpeg.Jpeg8Codec (ClearCanvas.Dicom.Codec.Jpeg.JpegMode.Baseline, 0, 0 ) ;
//ClearCanvas.Dicom.Codec.Jpeg.DicomJpegParameters jparam = new ClearCanvas.Dicom.Codec.Jpeg.DicomJpegParameters ( ) ;
//jparam.
//codec.
//codec.Encode ( )
}
}
public static void LosslessImageTest(TransferSyntax syntax, DicomFile theFile)
{
if (File.Exists(theFile.Filename))
{
File.Delete(theFile.Filename);
}
DicomFile saveCopy = new DicomFile(theFile.Filename, theFile.MetaInfo.Copy(), theFile.DataSet.Copy());
theFile.ChangeTransferSyntax(syntax);
theFile.Save(DicomWriteOptions.ExplicitLengthSequence);
saveCopy.Filename = "SCLosslessUncompressed.dcm";
saveCopy.Save(DicomWriteOptions.ExplicitLengthSequence);
DicomFile newFile = new DicomFile(theFile.Filename);
newFile.Load(DicomReadOptions.Default);
newFile.ChangeTransferSyntax(saveCopy.TransferSyntax);
newFile.Filename = "SCLosslessUncompressedPostCompression.dcm";
newFile.Save(DicomWriteOptions.ExplicitLengthSequence);
string failureDescription;
bool result = Compare(DicomPixelData.CreateFrom(newFile),
DicomPixelData.CreateFrom(saveCopy), out failureDescription);
Assert.IsTrue(result, failureDescription);
List <DicomAttributeComparisonResult> list = new List <DicomAttributeComparisonResult>();
result = newFile.DataSet.Equals(saveCopy.DataSet, ref list);
StringBuilder sb = new StringBuilder();
foreach (DicomAttributeComparisonResult compareResult in list)
{
sb.AppendFormat("Comparison Failure: {0}, ", compareResult.Details);
}
Assert.IsTrue(result, sb.ToString());
}
public static void LosslessImageTestWithBitsAllocatedConversion(TransferSyntax syntax, DicomFile theFile)
{
if (File.Exists(theFile.Filename))
{
File.Delete(theFile.Filename);
}
DicomFile saveCopy = new DicomFile(theFile.Filename, theFile.MetaInfo.Copy(), theFile.DataSet.Copy());
theFile.ChangeTransferSyntax(syntax);
theFile.Save(DicomWriteOptions.ExplicitLengthSequence);
DicomFile newFile = new DicomFile(theFile.Filename);
newFile.Load(DicomReadOptions.Default);
newFile.ChangeTransferSyntax(saveCopy.TransferSyntax);
string failureDescription;
var newPd = DicomPixelData.CreateFrom(newFile);
var oldPd = DicomPixelData.CreateFrom(saveCopy);
bool result = Compare(newPd, oldPd, out failureDescription);
Assert.IsFalse(result, failureDescription);
Assert.IsFalse(newFile.DataSet.Equals(saveCopy.DataSet));
DicomAttributeCollection newDataSet = newFile.DataSet.Copy(true, true, true);
DicomAttributeCollection oldDataSet = theFile.DataSet.Copy(true, true, true);
oldDataSet.RemoveAttribute(DicomTags.BitsAllocated);
newDataSet.RemoveAttribute(DicomTags.BitsAllocated);
oldDataSet.RemoveAttribute(DicomTags.PixelData);
newDataSet.RemoveAttribute(DicomTags.PixelData);
var results = new List <DicomAttributeComparisonResult>();
bool check = oldDataSet.Equals(newDataSet, ref results);
Assert.IsTrue(check, results.Count > 0 ? CollectionUtils.FirstElement(results).Details : string.Empty);
for (int i = 0; i < oldPd.NumberOfFrames; i++)
{
var frame = oldPd.GetFrame(i);
var convertedFrame = DicomUncompressedPixelData.ToggleBitDepth(frame, frame.Length,
oldPd.UncompressedFrameSize,
oldPd.BitsStored, oldPd.BitsAllocated);
var newFrame = newPd.GetFrame(i);
int pixelsVarying = 0;
decimal totalVariation = 0.0m;
for (int j = 0; j < convertedFrame.Length; j++)
{
if (convertedFrame[j] != newFrame[j])
{
pixelsVarying++;
totalVariation += Math.Abs(convertedFrame[i] - newFrame[i]);
}
}
if (pixelsVarying > 0)
{
Assert.Fail(String.Format(
"Tag (7fe0,0010) Pixel Data: {0} of {1} pixels varying, average difference: {2}",
pixelsVarying, convertedFrame.Length, totalVariation / pixelsVarying));
}
}
}
public static void CreateSeriesGraphicsForSeg(IPresentationImage presentationImage, Seg seg,
SegmentationDocument segmentationDocument,
IDicomMessageSopDataSource dicomMessageSopDataSourceSop)
{
Platform.CheckForNullReference(presentationImage, "presentationImage");
Platform.CheckForNullReference(seg, "seg");
Platform.CheckForNullReference(segmentationDocument, "segmentationDocument");
SegmentImageData segImageData = seg.SegmentImageData;
if (segImageData == null)
{
Platform.Log(LogLevel.Error,
"Cannot create segmentation graphics when no segmentation imaging data is provided");
return;
}
var imageSopProvider = presentationImage as IImageSopProvider;
if (imageSopProvider == null)
{
Platform.Log(LogLevel.Error,
"Failed to populate SegFrameGraphics collection. Image is not an ImageSopProvider");
return;
}
DicomPixelData segmentationPixelData = DicomPixelData.CreateFrom(dicomMessageSopDataSourceSop.SourceMessage);
var rawPixelData =
(byte[])dicomMessageSopDataSourceSop.SourceMessage.DataSet.GetAttribute(DicomTags.PixelData).Values;
var pixelDataGetter = new Func <int, byte[]>(frameIndex =>
{
if (segImageData.BitsStored == 1)
{
// Do unpacking
int frameLength = segImageData.Rows *
segImageData.Columns;
var overlayData =
new OverlayData(frameIndex * frameLength,
segImageData.Rows,
segImageData.Columns, false,
rawPixelData);
return(overlayData.Unpack());
}
if (segImageData.BitsStored == 8)
{
return(segmentationPixelData.GetFrame(frameIndex));
}
throw new InvalidDataException(
"Segmentation objects need to have BitsStored as either 1 or 8");
});
// NOTE: SegmentFrameData was already sorted
foreach (SegmentFrameData segmentFrameData in segImageData.SegmentFrameData)
{
IPresentationImage segPresentationImage = null;
// Get the presentation image if we have an image reference
string referencedSopInstanceUid = segmentFrameData.ReferencedSopInstanceUid;
int referencedImageFrameNumber = segmentFrameData.ReferencedFrameNumber ?? 1;
if (!string.IsNullOrEmpty(referencedSopInstanceUid))
{
segPresentationImage =
presentationImage.ParentDisplaySet.PresentationImages.OfType <IImageSopProvider>()
.FirstOrDefault(curImageSopProvider => curImageSopProvider != null &&
curImageSopProvider.ImageSop.SopInstanceUid ==
referencedSopInstanceUid &&
curImageSopProvider.Frame.FrameNumber ==
referencedImageFrameNumber) as IPresentationImage;
}
// Location defaults to 0, 0 unless determined otherwise from image position and image orientation
var segLocation = new PointF();
// Get the presentation image from the image position and orientation
if (segmentFrameData.ImagePositionPatient != null &&
segmentFrameData.ImagePositionPatient.Count() > 2 &&
segmentFrameData.ImageOrientationPatient != null &&
segmentFrameData.ImageOrientationPatient.Count() > 5)
{
var imagePositionPatient = new ImagePositionPatient(
segmentFrameData.ImagePositionPatient[0],
segmentFrameData.ImagePositionPatient[1],
segmentFrameData.ImagePositionPatient[2]);
var imageOrientationPatient = new ImageOrientationPatient(
segmentFrameData.ImageOrientationPatient[0],
segmentFrameData.ImageOrientationPatient[1],
segmentFrameData.ImageOrientationPatient[2],
segmentFrameData.ImageOrientationPatient[3],
segmentFrameData.ImageOrientationPatient[4],
segmentFrameData.ImageOrientationPatient[5]);
IDisplaySet displaySet = presentationImage.ParentDisplaySet;
if (segPresentationImage == null)
{
segPresentationImage = PresentationImageFromPositionOrientation(
imagePositionPatient,
imageOrientationPatient,
displaySet,
segImageData.FrameOfReferenceUid);
}
var imageSop = segPresentationImage as IImageSopProvider;
if (imageSop != null)
{
Vector3D segImageLocation =
imageSop.Frame.ImagePlaneHelper.ConvertToImagePlane(new Vector3D(
(float)imagePositionPatient.X,
(float)imagePositionPatient.Y,
(float)imagePositionPatient.Z));
PointF?segPixelLocation =
imageSop.Frame.ImagePlaneHelper.ConvertToImage(
new PointF(segImageLocation.X, segImageLocation.Y));
if (segPixelLocation.HasValue)
{
segLocation = segPixelLocation.Value;
}
}
}
if (segPresentationImage != null)
{
SegFrameImageGraphic newGraphic = AddSegFrameImageGraphicToPresentationImage(
segPresentationImage,
segImageData.Rows,
segImageData.Columns,
segLocation.X,
segLocation.Y,
seg.Color,
referencedImageFrameNumber,
seg.Label,
seg.Description,
pixelDataGetter.Invoke(segmentFrameData.FrameNumber - 1),
new SegmentationDocumentReference(segmentationDocument, seg.SegmentationNumber));
if (newGraphic != null &&
segPresentationImage == segPresentationImage.ParentDisplaySet.ImageBox.TopLeftPresentationImage)
{
newGraphic.Draw();
}
}
else
{
Platform.Log(LogLevel.Error, "Failed to find Presentation Image to display a segment on");
}
}
}
//TODO: I should be able to replace this with the media readers now
protected override WadoResponse DoProcess(IWadoUriRequest request, string mimeType)
{
var dcmLocation = MediaStorage.GetLocation(new DicomMediaId(request, MimeMediaTypes.DICOM));
//var dcmLocation = RetrieveService.RetrieveSopInstances ( request, mimeType ).FirstOrDefault();
if (!dcmLocation.Exists( ))
{
throw new ApplicationException("Object Not Found - return proper wado error ");
}
//if (string.Compare(mimeType, MimeMediaTypes.DICOM, true) == 0)
{
return(new WadoResponse(Location, mimeType));
}
DicomFile file = new DicomFile( );
var frameIndex = request.ImageRequestInfo.FrameNumber - 1 ?? 0;
frameIndex = Math.Max(frameIndex, 0);
file.Load(dcmLocation.GetReadStream());
if (string.Compare(mimeType, MimeMediaTypes.Jpeg, true) == 0)
{
WadoResponse response = new WadoResponse();
if (file.TransferSyntax == TransferSyntax.JpegBaselineProcess1)
{
//ClearCanvas.Dicom.Codec.Jpeg.Jpeg8Codec codec = new ClearCanvas.Dicom.Codec.Jpeg.Jpeg8Codec (ClearCanvas.Dicom.Codec.Jpeg.JpegMode.Baseline, 0, 0 )
//codec.Encode ()
DicomCompressedPixelData pd = DicomPixelData.CreateFrom(file) as DicomCompressedPixelData;
byte[] buffer = pd.GetFrameFragmentData(frameIndex);
response.Content = new MemoryStream(buffer);
response.MimeType = mimeType;
return(response);
}
else
{
}
}
if (string.Compare(mimeType, MimeMediaTypes.UncompressedData) == 0)
{
WadoResponse response = null;
DicomPixelData pd = null;
byte[] buffer = null;
response = new WadoResponse( );
pd = DicomPixelData.CreateFrom(file);
buffer = pd.GetFrame(frameIndex);
//********* TEST CODE***************
//System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap (pd.ImageWidth, pd.ImageHeight, System.Drawing.Imaging.PixelFormat.Format8bppIndexed ) ;
//System.Drawing.Imaging.ColorPalette ncp = bitmap.Palette;
// for (int i = 0; i < 256; i++)
// ncp.Entries[i] = System.Drawing.Color.FromArgb(255, i, i, i);
// bitmap.Palette = ncp;
// System.Drawing.Imaging.BitmapData data = bitmap.LockBits (new System.Drawing.Rectangle ( 0,0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
//IntPtr ptr = data.Scan0 ;
//System.Runtime.InteropServices.Marshal.Copy (buffer, 0, ptr, buffer.Length ) ;
//string fileName = @"C:\Users\zalsafadi_p.SPX\Downloads\libwebp-master\Output\release-static\x86\bin\Samples\uncompressed.raw" ;
//bitmap.UnlockBits (data);
//bitmap.Save ( fileName);
//File.WriteAllBytes(fileName, buffer) ;
//********* TEST CODE***************
response.Content = new MemoryStream(buffer);
response.MimeType = mimeType;
return(response);
}
//if ( string.Compare(mimeType, MimeMediaTypes.WebP) == 0)
//{
// WadoResponse response = new WadoResponse ( ) ;
// byte[] buffer = File.ReadAllBytes(Location) ;
// response.Content = new MemoryStream(buffer);
// response.MimeType = mimeType ;
// return response ;
//}
return(null);
}
