private static VoiLutSequenceItem SerializeDataLut(IDataLut voiLut)
{
int inputLength = voiLut.Data.Length;
int[] descriptor = new int[3];
descriptor[0] = inputLength;
if (descriptor[0] == 65536)
{
descriptor[0] = 0;
}
descriptor[1] = voiLut.FirstMappedPixelValue;
descriptor[2] = 16;
ushort[] data = new ushort[inputLength];
unsafe
{
fixed(ushort *output = data)
{
fixed(int *input = voiLut.Data)
{
for (int n = 0; n < inputLength; n++)
{
output[n] = (ushort)(input[n] & 0x0000FFFF);
}
}
}
}
VoiLutSequenceItem lutseq = new VoiLutSequenceItem();
lutseq.LutDescriptor = descriptor;
lutseq.LutData = data;
lutseq.LutExplanation = SR.LabelPresentationVoiDataLut;
return(lutseq);
}
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();
}
}
