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GetLinearVoiLookupTableCommand Class
See Also  Members  
Leadtools.ImageProcessing.Core Namespace : GetLinearVoiLookupTableCommand Class



Gets the window center and the window width, if the LookupTable stored inside the image is linear. If the LookupTable stored inside the image is not linear, the command will fail. Supported in Silverlight, Windows Phone 7

Object Model

GetLinearVoiLookupTableCommand Class

Syntax

Visual Basic (Declaration) 
Public Class GetLinearVoiLookupTableCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As GetLinearVoiLookupTableCommand
C# 
public class GetLinearVoiLookupTableCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand 
C++/CLI 
public ref class GetLinearVoiLookupTableCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand 

Example

Run the GetLinearVoiLookupTableCommand on the image. and checks the linearity of the LookupTable and computes its window width and center by using this method.

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

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

   ' 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
C#Copy Code
public void GetLinearVoiLookupTableCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // 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";
}
SilverlightCSharpCopy Code
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();
}
SilverlightVBCopy Code
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

Remarks

  • 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.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.GetLinearVoiLookupTableCommand

Requirements

Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also