/// <summary>
/// Contructor from a <see cref="DicomCompressedPixelData"/> instance.
/// </summary>
/// <param name="compressedPixelData"></param>
public DicomUncompressedPixelData(DicomCompressedPixelData compressedPixelData)
: base(compressedPixelData)
{
if (BitsAllocated > 8)
{
_pd = new DicomAttributeOW(DicomTags.PixelData);
}
else
{
var pdTag = DicomTagDictionary.GetDicomTag(DicomTags.PixelData);
var obTag = new DicomTag(DicomTags.PixelData, pdTag.Name, pdTag.VariableName, DicomVr.OBvr, pdTag.MultiVR, pdTag.VMLow, pdTag.VMHigh, pdTag.Retired);
_pd = new DicomAttributeOB(obTag);
}
InitializeFrameData(this, _pd);
}
private void InitializeFrameData(DicomUncompressedPixelData owner, DicomAttribute pixelDataAttribute)
{
var obAttrib = pixelDataAttribute as DicomAttributeOB;
if (obAttrib != null && obAttrib.StreamLength > 0)
{
for (var n = 0; n < NumberOfFrames; ++n)
_fd.Add(new FrameDataOB(owner, obAttrib, n));
}
var owAttrib = pixelDataAttribute as DicomAttributeOW;
if (owAttrib != null && owAttrib.StreamLength > 0)
{
for (var n = 0; n < NumberOfFrames; ++n)
_fd.Add(new FrameDataOW(owner, owAttrib, n));
}
}
/// <summary>
/// Constructor from an <see cref="DicomAttributeCollection"/> instance.
/// </summary>
/// <param name="collection"></param>
public DicomUncompressedPixelData(DicomAttributeCollection collection)
: base(collection)
{
_pd = collection[DicomTags.PixelData];
InitializeFrameData(this, _pd);
}
/// <summary>
/// Initializes a <see cref="DicomUncompressedPixelData"/> from the attributes in a DICOM file/message.
/// </summary>
/// <param name="dicomMessage">A DICOM file/message from which to initialize the properties of the <see cref="DicomUncompressedPixelData"/>.</param>
public DicomUncompressedPixelData(DicomMessageBase dicomMessage)
: base(dicomMessage)
{
_pd = dicomMessage.DataSet[DicomTags.PixelData];
InitializeFrameData(this, _pd);
}
public void ConvertPaletteColorToRgb()
{
Platform.CheckTrue(PhotometricInterpretation.Equals("PALETTE COLOR"), "Photometric Interpretation Palette Color Check");
List<FrameData> frames = new List<FrameData>();
for (int i = 0; i < NumberOfFrames; i++)
{
byte[] currentFrame = GetFrame(i);
byte[] newFrame = new byte[UncompressedFrameSize*3];
PaletteColorToRgb(BitsAllocated, IsSigned, currentFrame, newFrame, PaletteColorLut);
frames.Add(new FrameDataBytes(this, newFrame, false));
}
// change the Pixel Data attribute so we don't affect the original
_pd = _pd.Tag.VR.CreateDicomAttribute(_pd.Tag);
_fd.Clear();
_fd.AddRange(frames);
SamplesPerPixel = 3;
PhotometricInterpretation = "RGB";
PlanarConfiguration = 0;
HasPaletteColorLut = false;
}
/// <summary>
/// Internal constructor used when copying an attribute from a pre-existing attribute instance.
/// </summary>
/// <param name="attrib">The attribute that is being copied.</param>
internal DicomAttribute(DicomAttribute attrib)
{
Tag = attrib.Tag;
_valueCount = attrib.Count;
_length = attrib.StreamLength;
}
