←Select platform

VoiLutCount Property

Summary
Gets the number of items under the VOI LUT Sequence (0028,3010).
Syntax
C#
C++
public int VoiLutCount { get; } 
public: 
property int VoiLutCount { 
   int get(); 
} 

Property Value

The number of items under the VOI LUT Sequence.

Remarks

This property gets the number of items under the VOI LUT Sequence (0028,3010). If this Sequence does not exist in the Data Set, the property specifies 0.

Example

This example will load a DICOM dataset, update its VOI LUT and then verify that it was updated properly.

C#
using Leadtools; 
using Leadtools.Dicom; 
 
 
public void TestVoiLut() 
{ 
   string dicomFileName = Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "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 VoiLutSize = 65536; 
 
      //Load DICOM File 
      ds.Load(dicomFileName, DicomDataSetLoadFlags.None); 
      ds.DeleteVoiLut(); 
 
      DicomVoiLutAttributes VoiLutAttributes = new DicomVoiLutAttributes(); 
      VoiLutAttributes.FirstStoredPixelValueMapped = 0; 
      VoiLutAttributes.EntryBits = 16; 
      VoiLutAttributes.NumberOfEntries = VoiLutSize; 
 
      int[] LutData = new int[VoiLutSize]; 
      for (int i = 0; i < VoiLutSize; i++) 
      { 
         LutData[i] = i; 
      } 
      ds.SetVoiLut(0, VoiLutAttributes, LutData); 
 
      DicomVoiLutAttributes attributes = ds.GetVoiLut(0); 
      if (attributes != null) 
      { 
         Debug.Assert(attributes.FirstStoredPixelValueMapped == 0); 
         Debug.Assert(attributes.EntryBits == 16); 
         Debug.Assert(attributes.NumberOfEntries == VoiLutSize); 
 
         int[] data = ds.GetVoiLutData(0); 
         // Do something with the data 
      } 
      ds.Save(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "VOILut.dcm"), DicomDataSetSaveFlags.None); 
 
   } 
   DicomEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2022.4.4
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Dicom Assembly