NumberOfEntries Property

Summary

Gets or sets the number of entries in the lookup table.

Syntax

Objective-C

C++/CLI

Java

public int NumberOfEntries { get; set; }

@property (nonatomic, assign) NSUInteger numberOfEntries;

public int getNumberOfEntries() 
public void setNumberOfEntries(int value)

public: 
property int NumberOfEntries { 
   int get(); 
   void set (    int value); 
}

Property Value

Value indicating the first value in the "LUT Descriptor". Specifies the number of entries in the lookup table.

Remarks

This property specifies the attributes of "LUT Descriptor" (0028,3002) element under the "Modality LUT Sequence" (0028,3000).

Example

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

Reference

DicomVoiLutAttributes Class

DicomVoiLutAttributes Members

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Help Version 22.0.2023.1.29

Leadtools.Dicom Assembly

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Leadtools.Dicom Namespace

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