LookupTable Property

Summary

Array of short values which contains the lookup table.

Syntax

Objective-C

C++/CLI

Java

Python

public short[] LookupTable { get; set; }

@property (nonatomic, assign, nullable) const uint16_t *lookupTable;

public int[ getLookupTable(); 
public void setLookupTable( 
   int[] int[Value 
);

public: 
property array<short>^ LookupTable { 
   array<short>^ get(); 
   void set (    array<short>^ ); 
}

LookupTable # get and set (ApplyVoiLookupTableCommand)

Property Value

Array of short values which contains the lookup table. Its length determines the number of entries. All the pixels that are greater than FirstStoredPixelValueMapped + (LookupTable->Length) will be set to the last entry in the LookupTable (LookupTable[LookupTable->Length - 1]).

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ApplyVoiLookupTableCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE2.dcm")); 
 
   // Prepare the command 
   int i; 
   short[] pLookupTable = new short[0x10000]; 
   DicomLookupTableDescriptor LookupTableDescriptor = new DicomLookupTableDescriptor(); 
 
   for (i = 0; i < 0x10000; i++) 
   { 
      if (i < 30) 
      { 
         pLookupTable[i] = 0; 
      } 
      else 
         if (i > 630) 
         pLookupTable[i] = 630; 
      else 
         pLookupTable[i] = (short)i; 
   } 
 
   // fill the LookupTableDescriptor object 
   LookupTableDescriptor.FirstStoredPixelValueMapped = 0; 
   LookupTableDescriptor.EntryBits = 16; 
 
   ApplyVoiLookupTableCommand command = new ApplyVoiLookupTableCommand(); 
   command.Flags = VoiLookupTableCommandFlags.None; 
   command.LookupTable = pLookupTable; 
   command.LookupTableDescriptor = LookupTableDescriptor; 
   command.Run(image); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

ApplyVoiLookupTableCommand Class

ApplyVoiLookupTableCommand Members

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

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