Deletes all the elements that describe the "Palette Color Lookup Table".
Syntax
| Visual Basic (Declaration) | |
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Public Sub DeletePaletteColorLut() |
| Visual Basic (Usage) |  Copy Code |
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Dim instance As DicomDataSet
instance.DeletePaletteColorLut()
|
| C# | |
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public void DeletePaletteColorLut() |
| C++/CLI | |
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public:
void DeletePaletteColorLut(); |
Example
This example will load a DICOM dataset, update its palette color LUT and then verify that the LUT was updated properly.
| Visual Basic | Copy Code |
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Public Sub TestPaletteColorLut()
Dim dicomFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "IMAGE3.dic"
DicomEngine.Startup()
Dim ds As DicomDataSet = New DicomDataSet()
Using (ds)
Dim paletteColorLutSize As Integer = 65536
ds.Load(dicomFileName, DicomDataSetLoadFlags.None)
ds.DeletePaletteColorLut()
Dim paletteColorLutAttributes As DicomPaletteColorLutAttributes = New DicomPaletteColorLutAttributes()
paletteColorLutAttributes.RedFirstStoredPixelValueMapped = 0
paletteColorLutAttributes.RedEntryBits = 16
paletteColorLutAttributes.RedNumberOfEntries = paletteColorLutSize
paletteColorLutAttributes.GreenFirstStoredPixelValueMapped = 0
paletteColorLutAttributes.GreenEntryBits = 16
paletteColorLutAttributes.GreenNumberOfEntries = paletteColorLutSize
paletteColorLutAttributes.BlueFirstStoredPixelValueMapped = 0
paletteColorLutAttributes.BlueEntryBits = 16
paletteColorLutAttributes.BlueNumberOfEntries = paletteColorLutSize
ds.SetPaletteColorLutAttributes(paletteColorLutAttributes)
Dim LutData As Integer() = New Integer(paletteColorLutSize - 1) {}
Dim i As Integer = 0
Do While i < paletteColorLutSize
LutData(i) = i
i += 1
Loop
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Red)
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Green)
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Blue)
Dim attributes As DicomPaletteColorLutAttributes = ds.GetPaletteColorLutAttributes()
If Not attributes Is Nothing Then
Debug.Assert(attributes.RedNumberOfEntries = paletteColorLutSize)
Debug.Assert(attributes.GreenNumberOfEntries = paletteColorLutSize)
Debug.Assert(attributes.BlueNumberOfEntries = paletteColorLutSize)
Dim data As Integer() = ds.GetPaletteColorLutData(DicomPaletteColorLutType.Red)
End If
ds.Save(LeadtoolsExamples.Common.ImagesPath.Path + "PLUT.dic", DicomDataSetSaveFlags.None)
End Using
DicomEngine.Shutdown()
End Sub |
| C# | Copy Code |
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public void TestPaletteColorLut()
{
string dicomFileName = LeadtoolsExamples.Common.ImagesPath.Path + "IMAGE3.dic";
//Make sure to initialize the DICOM engine, this needs to be done only once
//In the whole application
DicomEngine.Startup();
using (DicomDataSet ds = new DicomDataSet())
{
int paletteColorLutSize = 65536;
//Load DICOM File
ds.Load(dicomFileName, DicomDataSetLoadFlags.None);
ds.DeletePaletteColorLut();
DicomPaletteColorLutAttributes paletteColorLutAttributes = new DicomPaletteColorLutAttributes();
// Initialize Red Palette Color Lookup Table Descriptor (0028,1101)
paletteColorLutAttributes.RedFirstStoredPixelValueMapped = 0;
paletteColorLutAttributes.RedEntryBits = 16;
paletteColorLutAttributes.RedNumberOfEntries = paletteColorLutSize;
// Initialize Green Palette Color Lookup Table Descriptor (0028,1102)
paletteColorLutAttributes.GreenFirstStoredPixelValueMapped = 0;
paletteColorLutAttributes.GreenEntryBits = 16;
paletteColorLutAttributes.GreenNumberOfEntries = paletteColorLutSize;
// Initialize Blue Palette Color Lookup Table Descriptor (0028,1103)
paletteColorLutAttributes.BlueFirstStoredPixelValueMapped = 0;
paletteColorLutAttributes.BlueEntryBits = 16;
paletteColorLutAttributes.BlueNumberOfEntries = paletteColorLutSize;
ds.SetPaletteColorLutAttributes(paletteColorLutAttributes);
int[] LutData = new int[paletteColorLutSize];
for (int i = 0; i < paletteColorLutSize; i++)
{
LutData[i] = i;
}
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Red);
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Green);
ds.SetPaletteColorLutData(LutData, DicomPaletteColorLutType.Blue);
DicomPaletteColorLutAttributes attributes = ds.GetPaletteColorLutAttributes();
if (attributes != null)
{
Debug.Assert(attributes.RedNumberOfEntries == paletteColorLutSize);
Debug.Assert(attributes.GreenNumberOfEntries == paletteColorLutSize);
Debug.Assert(attributes.BlueNumberOfEntries == paletteColorLutSize);
int[] data = ds.GetPaletteColorLutData(DicomPaletteColorLutType.Red);
// Do something with the data
}
ds.Save(LeadtoolsExamples.Common.ImagesPath.Path + "PLUT.dic", DicomDataSetSaveFlags.None);
}
DicomEngine.Shutdown();
} |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family
See Also
