FrequencyFilterCommand Constructor()

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public FrequencyFilterCommand()

'Declaration
 
Public Function New()

'Usage
 
Dim instance As New FrequencyFilterCommand()

public FrequencyFilterCommand()

function FrequencyFilterCommand()

public:
FrequencyFilterCommand();

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

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Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Core

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

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

   ' Prepare the command
   ' Resize the image to make sure the image's dimensions are power of two.
   Dim sizeCmd As SizeCommand = New SizeCommand(256, 256, RasterSizeFlags.Bicubic)
   sizeCmd.Run(leadImage)

   Dim FTArray As FourierTransformInformation = New FourierTransformInformation(leadImage)
   ' Apply FFT.
   Dim command As FastFourierTransformCommand = New FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.FastFourierTransform Or FastFourierTransformCommandFlags.Gray)
   command.Run(leadImage)

   Dim rcRect As LeadRect = New LeadRect(0, 0, leadImage.Width \ 2, leadImage.Height \ 2)
   Dim FreqCommand As FrequencyFilterCommand = New FrequencyFilterCommand
   FreqCommand.Flags = FrequencyFilterCommandFlags.InsideX Or FrequencyFilterCommandFlags.OutsideY
   FreqCommand.FourierTransformInformation = FTArray
   FreqCommand.Rectangle = rcRect

   Dim InvCommand As FastFourierTransformCommand = New FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.InverseFastFourierTransform Or FastFourierTransformCommandFlags.Gray Or FastFourierTransformCommandFlags.Scale Or FastFourierTransformCommandFlags.Both)
   InvCommand.Run(leadImage)

End Sub

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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;

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

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

   // Prepare the command
   // Resize the image to make sure the image's dimensions are power of two.
   SizeCommand sizeCommand = new SizeCommand(256, 256, RasterSizeFlags.Bicubic);           
   sizeCommand.Run(image);

   FourierTransformInformation ftArray = new FourierTransformInformation(image);
   // Apply FFT.
   FastFourierTransformCommand command = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.FastFourierTransform |  FastFourierTransformCommandFlags.Gray);   
   command.Run(image);

   LeadRect rcRect = new LeadRect(0, 0, image.Width / 2, image.Height / 2);
   FrequencyFilterCommand freqCommand = new FrequencyFilterCommand();
   freqCommand.Flags = FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.InsideY;
   freqCommand.FourierTransformInformation = ftArray;
   freqCommand.Rectangle = rcRect;

   FastFourierTransformCommand invCommand = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.InverseFastFourierTransform | FastFourierTransformCommandFlags.Gray | FastFourierTransformCommandFlags.Scale | FastFourierTransformCommandFlags.Both);
   invCommand.Run(image);

}

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

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

   // Load the image
   var srcFileName = "Assets\\Image1.cmp";
   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) {
         // Resize the image to make sure the image's dimensions are power of two.
         var sizeCommand = new Leadtools.ImageProcessing.SizeCommand(256, 256, Leadtools.RasterSizeFlags.bicubic);           
         sizeCommand.run(image);

         var ftArray = new FourierTransformInformation(image);
         // Apply FFT.
         var command = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.fastFourierTransform |  FastFourierTransformCommandFlags.gray);   
         command.run(image);

         var rcRect = Leadtools.LeadRectHelper.create(0, 0, image.width / 2, image.height / 2);
         var freqCommand = new FrequencyFilterCommand();
         freqCommand.flags = FrequencyFilterCommandFlags.insideX | FrequencyFilterCommandFlags.insideY;
         freqCommand.fourierTransformInformation = ftArray;
         freqCommand.rectangle = rcRect;

         var invCommand = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.inverseFastFourierTransform | FastFourierTransformCommandFlags.gray | FastFourierTransformCommandFlags.scale | FastFourierTransformCommandFlags.both);
         invCommand.run(image);
      }
   });
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing;

      
public async Task FrequencyFilterConstructorExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   // Resize the image to make sure the image's dimensions are power of two.
   SizeCommand sizeCommand = new SizeCommand(256, 256, RasterSizeFlags.Bicubic);           
   sizeCommand.Run(image);

   FourierTransformInformation ftArray = new FourierTransformInformation(image);
   // Apply FFT.
   FastFourierTransformCommand command = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.FastFourierTransform |  FastFourierTransformCommandFlags.Gray);   
   command.Run(image);

   LeadRect rcRect = LeadRectHelper.Create(0, 0, image.Width / 2, image.Height / 2);
   FrequencyFilterCommand freqCommand = new FrequencyFilterCommand();
   freqCommand.Flags = FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.InsideY;
   freqCommand.FourierTransformInformation = ftArray;
   freqCommand.Rectangle = rcRect;

   FastFourierTransformCommand invCommand = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.InverseFastFourierTransform | FastFourierTransformCommandFlags.Gray | FastFourierTransformCommandFlags.Scale | FastFourierTransformCommandFlags.Both);
   invCommand.Run(image);

}

Target Platforms

Reference

FrequencyFilterCommand Class
FrequencyFilterCommand Members
Overload List