GetLinearVoiLookupTableCommand Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class GetLinearVoiLookupTableCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class GetLinearVoiLookupTableCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As GetLinearVoiLookupTableCommand

public sealed class GetLinearVoiLookupTableCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Core.GetLinearVoiLookupTableCommand()

public ref class GetLinearVoiLookupTableCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

Pay attention to lookup tables for signed images. The upper half should contain negative values and the lower half should contain positive values.
This class supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
This command does not support 32-bit grayscale images.

In Silverlight and Windows Phone versions of LEADTOOLS, this image processing command will fail if the image data for the RasterImage object is stored internally using a Silverlight WriteableBitmap object. For more information, refer to Image Processing Command Limitations in Silverlight.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub GetLinearVoiLookupTableCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE2.dcm"))

   ' Prepare the command
   Dim command As GetLinearVoiLookupTableCommand = New GetLinearVoiLookupTableCommand
   command.Flags = GetLinearVoiLookupTableCommandFlags.None
   command.Run(leadImage)
   MessageBox.Show("Width  = " + command.Width.ToString + "\n" + "Center = " + command.Center.ToString)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void GetLinearVoiLookupTableCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE2.dcm"));

      // Prepare the command
      GetLinearVoiLookupTableCommand command = new GetLinearVoiLookupTableCommand();
      command.Flags = GetLinearVoiLookupTableCommandFlags.None;
      command.Run(image);
      MessageBox.Show("Width  = " + command.Width + "\n" + "Center = " + command.Center);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

function GetLinearVoiLookupTableCommandExample()
{
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;

   // Load the image
   var srcFileName = "Assets\\IMAGE2.dcm";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image) {
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command = new GetLinearVoiLookupTableCommand();
         command.flags = GetLinearVoiLookupTableCommandFlags.none;
         command.run(image);
         console.error("Width  = " + command.width + "\n" + "Center = " + command.center);
      }
   });
}

[TestMethod]
public async Task GetLinearVoiLookupTableCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\IMAGE2.dcm";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   GetLinearVoiLookupTableCommand command = new GetLinearVoiLookupTableCommand();
   command.Flags = GetLinearVoiLookupTableCommandFlags.None;
   command.Run(image);
   Debug.WriteLine("Width  = " + command.Width + "\n" + "Center = " + command.Center);

}

public void GetLinearVoiLookupTableCommandExample(RasterImage image)
{
   // Prepare the command
   GetLinearVoiLookupTableCommand command = new GetLinearVoiLookupTableCommand();
   command.Flags = GetLinearVoiLookupTableCommandFlags.None;
   command.Run(image);
   Debug.WriteLine("Width  = " + command.Width + "\n" + "Center = " + command.Center);
   image.Dispose();
}

Public Sub GetLinearVoiLookupTableCommandExample(ByVal image As RasterImage)
   ' Prepare the command
   Dim command As GetLinearVoiLookupTableCommand = New GetLinearVoiLookupTableCommand()
   command.Flags = GetLinearVoiLookupTableCommandFlags.None
   command.Run(image)
   Debug.WriteLine("Width  = " & command.Width + Constants.vbLf & "Center = " & command.Center)
   image.Dispose()
End Sub

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

GetLinearVoiLookupTableCommand Members
Leadtools.ImageProcessing.Core Namespace
WindowLevelCommand Class
Leadtools.RasterPalette.WindowLevelFillLookupTable(Leadtools.RasterColor[],Leadtools.RasterColor,Leadtools.RasterColor,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,Leadtools.RasterPaletteWindowLevelFlags)
Leadtools.ImageProcessing.Effects.EffectsUtilities.GetUserLookupTable(System.Int32[],Leadtools.LeadPoint[])
Leadtools.ImageProcessing.Color.RemapIntensityCommand
ApplyLinearVoiLookupTableCommand Class