Deletes all the elements that describe the "Palette Color Lookup Table".
public void DeletePaletteColorLut()
Public Sub DeletePaletteColorLut()
public void deletePaletteColorLut()
public:
void DeletePaletteColorLut();
This method will delete all the elements defined under the "Palette Color Lookup Module", this includes: Red Palette Color Lookup Table Descriptor (0028,1101),
Green Palette Color Lookup Table Descriptor (0028,1102),
Blue Palette Color Lookup Table Descriptor (0028,1103),
Palette Color Lookup Table UID (0028,1199),
Red Palette Color Lookup Table Data (0028,1201),
Green Palette Color Lookup Table Data (0028,1202),
Blue Palette Color Lookup Table Data (0028,1203),
Segmented Red Palette Color Lookup Table Data (0028,1221),
Segmented Green Palette Color Lookup Table Data (0028,1222),
Segmented Blue Palette Color Lookup Table Data (0028,1223)
This example will load a DICOM dataset, update its palette color LUT and then verify that the LUT was updated properly.
using Leadtools;
using Leadtools.Dicom;
public void TestPaletteColorLut()
{
string dicomFileName = Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm");
//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(Path.Combine(LEAD_VARS.ImagesDir, "PLUT.dcm"), DicomDataSetSaveFlags.None);
}
DicomEngine.Shutdown();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Dicom
Public Sub TestPaletteColorLut()
Dim dicomFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm")
'Make sure to initialize the DICOM engine, this needs to be done only once
'In the whole application
DicomEngine.Startup()
Dim ds As DicomDataSet = New DicomDataSet()
Using (ds)
Dim paletteColorLutSize As Integer = 65536
'Load DICOM File
ds.Load(dicomFileName, DicomDataSetLoadFlags.None)
ds.DeletePaletteColorLut()
Dim paletteColorLutAttributes As DicomPaletteColorLutAttributes = 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)
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)
' Do something with the data
End If
ds.Save(Path.Combine(LEAD_VARS.ImagesDir, "PLUT.dcm"), DicomDataSetSaveFlags.None)
End Using
DicomEngine.Shutdown()
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
c#[Silverlight C# Example]
using Leadtools;
using Leadtools.Dicom;
using Leadtools.Examples;
public void TestPaletteColorLut(Stream dicomStream, Stream outputStream)
{
//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(dicomStream, 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(outputStream, DicomDataSetSaveFlags.None);
}
DicomEngine.Shutdown();
}
vb[Silverlight VB Example]
Imports Leadtools
Imports Leadtools.Dicom
Public Sub TestPaletteColorLut(ByVal dicomStream As Stream, ByVal outputStream As Stream)
'Make sure to initialize the DICOM engine, this needs to be done only once
'In the whole application
DicomEngine.Startup()
Using ds As DicomDataSet = New DicomDataSet()
Dim paletteColorLutSize As Integer = 65536
'Load DICOM File
ds.Load(dicomStream, DicomDataSetLoadFlags.None)
ds.DeletePaletteColorLut()
Dim paletteColorLutAttributes As DicomPaletteColorLutAttributes = 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)
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)
' Do something with the data
End If
ds.Save(outputStream, DicomDataSetSaveFlags.None)
End Using
DicomEngine.Shutdown()
End Sub
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