protected void DeserializeSoftcopyVoiLut(SoftcopyVoiLutModuleIod module, T image)
{
SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem[] lutSequences = module.SoftcopyVoiLutSequence;
if (lutSequences == null)
{
return;
}
DicomVoiLuts voiLuts = (DicomVoiLuts)image.DicomVoiLuts;
voiLuts.ReinitializePresentationLuts(this.PresentationSopInstanceUid);
foreach (SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem lutSequence in lutSequences)
{
var dictionary = !DeserializeIgnoreImageRelationship ? new ImageSopInstanceReferenceDictionary(lutSequence.ReferencedImageSequence, true) : null;
if (dictionary == null || dictionary.ReferencesFrame(image.ImageSop.SopInstanceUid, image.Frame.FrameNumber))
{
if (lutSequence.CountWindows > 0)
{
double[] widths = lutSequence.WindowWidth;
double[] centers = lutSequence.WindowCenter;
int countWindows = Math.Min(widths.Length, centers.Length);
string[] explanation = lutSequence.WindowCenterWidthExplanation;
if (explanation == null || explanation.Length < countWindows)
{
explanation = new string[countWindows];
}
if (lutSequence.VoiLutFunction == VoiLutFunction.Sigmoid)
{
Platform.Log(LogLevel.Warn, "Sigmoid LUTs are not currently supported.");
}
else // default is linear
{
for (int n = 0; n < countWindows; n++)
{
voiLuts.AddPresentationLinearLut(widths[n], centers[n], explanation[n]);
}
}
}
if (lutSequence.CountDataLuts > 0)
{
foreach (VoiLutSequenceItem item in lutSequence.VoiLutSequence)
{
DataLutIod dl = DataLutIod.Create(item.DicomSequenceItem, item.DicomAttributeProvider[DicomTags.LutDescriptor] is DicomAttributeSS, false);
voiLuts.AddPresentationDataLut(new VoiDataLut(dl.FirstMappedPixelValue, dl.BitsPerEntry, dl.Data, dl.Explanation));
}
}
}
}
}
protected void SerializeSoftcopyVoiLut(SoftcopyVoiLutModuleIod module, DicomPresentationImageCollection <T> images)
{
List <SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem> voiLutSequenceItems = new List <SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem>();
foreach (T image in images)
{
if (!image.VoiLutManager.Enabled)
{
continue;
}
SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem sequenceItem = new SoftcopyVoiLutModuleIod.SoftcopyVoiLutSequenceItem();
sequenceItem.InitializeAttributes();
sequenceItem.ReferencedImageSequence = new ImageSopInstanceReferenceMacro[] { CreateImageSopInstanceReference(image.Frame) };
IVoiLut lut = image.VoiLutManager.VoiLut;
if (lut is IDataLut)
{
IDataLut voiLut = (IDataLut)lut;
sequenceItem.VoiLutSequence = new VoiLutSequenceItem[] { SerializeDataLut(voiLut) };
}
else if (lut is IVoiLutLinear)
{
IVoiLutLinear voiLut = (IVoiLutLinear)lut;
sequenceItem.WindowWidth = new double[] { voiLut.WindowWidth };
sequenceItem.WindowCenter = new double[] { voiLut.WindowCenter };
sequenceItem.WindowCenterWidthExplanation = new string[] { SR.LabelPresentationVoiLinearLut };
sequenceItem.VoiLutFunction = VoiLutFunction.Linear; // we don't support sigmoid
}
else
{
// should never happen - all VOI LUT object should implement either interface
continue;
}
voiLutSequenceItems.Add(sequenceItem);
}
if (voiLutSequenceItems.Count > 0)
{
module.SoftcopyVoiLutSequence = voiLutSequenceItems.ToArray();
}
}
