Public Class DiscreteFourierTransformCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 

Dim instance As DiscreteFourierTransformCommand

public class DiscreteFourierTransformCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

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

Public Sub DiscreteFourierTransformCommandExample()
   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 FTArray As FourierTransformInformation = New FourierTransformInformation(leadImage)
   Dim rcRange As LeadRect = New LeadRect(0, 0, leadImage.Width - 1, leadImage.Height - 1)
   Dim command As DiscreteFourierTransformCommand = New DiscreteFourierTransformCommand

   command.FourierTransformInformation = FTArray
   command.Range = rcRange
   command.Flags = DiscreteFourierTransformCommandFlags.DiscreteFourierTransform Or _
      DiscreteFourierTransformCommandFlags.Gray Or _
      DiscreteFourierTransformCommandFlags.Range Or _
      DiscreteFourierTransformCommandFlags.InsideX Or _
      DiscreteFourierTransformCommandFlags.InsideY
   'Apply DFT.
   command.Run(leadImage)

   Dim disCommand As FourierTransformDisplayCommand = New FourierTransformDisplayCommand
   disCommand.Flags = FourierTransformDisplayCommandFlags.Log Or FourierTransformDisplayCommandFlags.Magnitude
   disCommand.FourierTransformInformation = command.FourierTransformInformation
   'plot frequency magnitude
   disCommand.Run(leadImage)

End Sub

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

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

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

      // Prepare the command
      FourierTransformInformation FTArray = new FourierTransformInformation(image);
      LeadRect rcRange = new LeadRect(0, 0, image.Width - 1, image.Height - 1);
      DiscreteFourierTransformCommand command = new DiscreteFourierTransformCommand();

      command.FourierTransformInformation = FTArray;
      command.Range = rcRange;
      command.Flags = DiscreteFourierTransformCommandFlags.DiscreteFourierTransform | 
         DiscreteFourierTransformCommandFlags.Gray    | 
         DiscreteFourierTransformCommandFlags.Range   | 
         DiscreteFourierTransformCommandFlags.InsideX | 
         DiscreteFourierTransformCommandFlags.InsideY;
      //Apply DFT.

      FourierTransformDisplayCommand disCommand = new FourierTransformDisplayCommand();
      disCommand.Flags = FourierTransformDisplayCommandFlags.Log|  FourierTransformDisplayCommandFlags.Magnitude;
      disCommand.FourierTransformInformation = command.FourierTransformInformation;
      // plot frequency magnitude
      disCommand.Run(image);

   }

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