Overloads Public Sub SetModalityLut( _
   ByVal frameIndex As Integer, _
   ByVal attributes As DicomModalityLutAttributes, _
   ByVal data() As Integer, _
   ByVal flags As DicomSetImageFlags _
) 

Visual Basic (Usage)	Copy Code
Dim instance As DicomDataSet Dim frameIndex As Integer Dim attributes As DicomModalityLutAttributes Dim data() As Integer Dim flags As DicomSetImageFlags   instance.SetModalityLut(frameIndex, attributes, data, flags)

public void SetModalityLut( 
   int frameIndex,
   DicomModalityLutAttributes attributes,
   int[] data,
   DicomSetImageFlags flags
)

public:
void SetModalityLut( 
   int frameIndex,
   DicomModalityLutAttributes^ attributes,
   array<int>^ data,
   DicomSetImageFlags flags
) 

Parameters

frameIndex

A zero-based index that identifies the frame number in the dataset. If the dataset does not support Multi-frames, this parameter is ignored.

attributes

The Modality LUT attributes to set.

data

Array of integers that holds the "LUT Data".

flags

determines how the modality LUT is stored

This example will initialize a new DICOM command set that supports Multi-frame functional groups Two modality LUT will be added to the dataset at the per frame level The modality LUT from the second frame is retrieved Finally, the modality LUT from the second frame is deleted

Visual Basic

Copy Code

''' Private Sub DicomDataSet_SetModalityLut2Example()    Dim ds As DicomDataSet = New DicomDataSet()    Dim flags As DicomDataSetInitializeFlags = DicomDataSetInitializeFlags.ExplicitVR Or DicomDataSetInitializeFlags.LittleEndian Or DicomDataSetInitializeFlags.AddMandatoryElementsOnly Or DicomDataSetInitializeFlags.AddMandatoryModulesOnly    ' Initialize with class that supports multiframe functional groups    ds.Initialize(DicomClassType.EnhancedMRImageStorage, flags)    ' Delete these items -- they will get added again later in the sample    ' * Shared Functional Group2 Sequence    ' * Per-frame Functional Group2 Sequence    Dim element As DicomElement = ds.FindFirstElement(Nothing, DicomTag.PerFrameFunctionalGroupsSequence, False)    If Not element Is Nothing Then       ds.DeleteElement(element)    End If    element = ds.FindFirstElement(Nothing, DicomTag.SharedFunctionalGroupsSequence, False)    If Not element Is Nothing Then       ds.DeleteElement(element)    End If    ' Add a modality LUT on 0th frame    Dim modalityLutAttributes As DicomModalityLutAttributes = New DicomModalityLutAttributes()    modalityLutAttributes.IsModalityLutSequence = False    modalityLutAttributes.IsRescaleSlopeIntercept = True    modalityLutAttributes.RescaleType = "UNSPECIFIED"    modalityLutAttributes.RescaleIntercept = -128.0    modalityLutAttributes.RescaleSlope = 1.0    ds.SetModalityLut(0, modalityLutAttributes, Nothing, DicomSetImageFlags.MfgModalityLutPerFrame)    ' Add a second modality LUT on the 1st frame    modalityLutAttributes.RescaleIntercept = -156.0    modalityLutAttributes.RescaleSlope = 1.1    ds.SetModalityLut(1, modalityLutAttributes, Nothing, DicomSetImageFlags.MfgModalityLutPerFrame)    ' Retrieve the modality LUT attributes from second frame (frameIndex == 1)    Dim modalityLutAttributes2 As DicomModalityLutAttributes = ds.GetModalityLutAttributes(1)    Dim sMsg As String = String.Format("Slope: {0}" & Constants.vbLf & "Intercept: {1}" & Constants.vbLf & "RescaleType {2}", modalityLutAttributes2.RescaleSlope, modalityLutAttributes2.RescaleIntercept, modalityLutAttributes2.RescaleType)    MessageBox.Show(sMsg)    ' Finally, delete the second modality LUT    ds.DeleteModalityLut(1, DicomSetImageFlags.None)    ' Save the file    ds.Save(LeadtoolsExamples.Common.ImagesPath.Path + "Test.dic", DicomDataSetSaveFlags.None) End Sub

C#

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///   void DicomDataSet_SetModalityLut2Example()  {     DicomDataSet ds = new DicomDataSet();     DicomDataSetInitializeFlags flags =        DicomDataSetInitializeFlags.ExplicitVR |        DicomDataSetInitializeFlags.LittleEndian |        DicomDataSetInitializeFlags.AddMandatoryElementsOnly |        DicomDataSetInitializeFlags.AddMandatoryModulesOnly        ;     // Initialize with class that supports multiframe functional groups     ds.Initialize(DicomClassType.EnhancedMRImageStorage, flags);       // Delete these items -- they will get added again later in the sample     // * Shared Functional Group2 Sequence     // * Per-frame Functional Group2 Sequence       DicomElement element = ds.FindFirstElement(null, DicomTag.PerFrameFunctionalGroupsSequence, false);     if (element != null)        ds.DeleteElement(element);       element = ds.FindFirstElement(null, DicomTag.SharedFunctionalGroupsSequence, false);     if (element != null)        ds.DeleteElement(element);       // Add a modality LUT on 0th frame     DicomModalityLutAttributes modalityLutAttributes = new DicomModalityLutAttributes();       modalityLutAttributes.IsModalityLutSequence = false;     modalityLutAttributes.IsRescaleSlopeIntercept = true;     modalityLutAttributes.RescaleType = "UNSPECIFIED";     modalityLutAttributes.RescaleIntercept = -128.0;     modalityLutAttributes.RescaleSlope = 1.0;     ds.SetModalityLut(0, modalityLutAttributes, null, DicomSetImageFlags.MfgModalityLutPerFrame);       // Add a second modality LUT on the 1st frame     modalityLutAttributes.RescaleIntercept = -156.0;     modalityLutAttributes.RescaleSlope = 1.1;     ds.SetModalityLut(1, modalityLutAttributes, null, DicomSetImageFlags.MfgModalityLutPerFrame);       // Retrieve the modality LUT attributes from second frame (frameIndex == 1)     DicomModalityLutAttributes modalityLutAttributes2 = ds.GetModalityLutAttributes(1);       string sMsg = string.Format("Slope: {0}\nIntercept: {1}\nRescaleType {2}",         modalityLutAttributes2.RescaleSlope,         modalityLutAttributes2.RescaleIntercept,        modalityLutAttributes2.RescaleType);     MessageBox.Show(sMsg);       // Finally, delete the second modality LUT     ds.DeleteModalityLut(1, DicomSetImageFlags.None);       // Save the file     ds.Save(LeadtoolsExamples.Common.ImagesPath.Path + "Test.dic", DicomDataSetSaveFlags.None);  }

If you are trying to set the "Rescale Intercept" (0028,1052) and "Rescale Slope" (0028,1053), set DicomModalityLutAttributes.IsRescaleSlopeIntercept to true, and populate DicomModalityLutAttributes.RescaleIntercept and DicomModalityLutAttributes.RescaleSlope with the new values. You can also populate DicomModalityLutAttributes.RescaleType if you want to set "Rescale Type" (0028,1054).

If you are trying to set the elements under "Modality LUT Sequence", set DicomModalityLutAttributes.IsModalityLutSequence to true, and populate DicomModalityLutAttributes.FirstStoredPixelValueMapped, DicomModalityLutAttributes.NumberOfEntries, DicomModalityLutAttributes.EntryBits, and DicomModalityLutAttributes.LutType. In this case, data should hold the "LUT Data" (0028,3006).

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference