LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)
LEAD Technologies, Inc

FrequencyFilterMaskCommand Constructor()

Example 





Initializes a new FrequencyFilterMaskCommand class object with default parameters. .NET support WinRT support
Syntax
public FrequencyFilterMaskCommand()
'Declaration
 
Public Function New()
'Usage
 
Dim instance As New FrequencyFilterMaskCommand()
public FrequencyFilterMaskCommand()
function FrequencyFilterMaskCommand()
public:
FrequencyFilterMaskCommand();
Example
 
Public Sub FrequencyFilterMaskConstructorExample()
   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 FreqCommand As FrequencyFilterMaskCommand = New FrequencyFilterMaskCommand
   FreqCommand.MaskImage = leadImage
   FreqCommand.FourierTransformInformation = FTArray
   FreqCommand.OnOff = False
   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
public void FrequencyFilterMaskConstructorExample()
   {
      // 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);

      FrequencyFilterMaskCommand freqCommand = new FrequencyFilterMaskCommand();
      freqCommand.MaskImage = image;
      freqCommand.FourierTransformInformation = ftArray;
      freqCommand.OnOff = false;

      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 FrequencyFilterMaskConstructorExample()
{
   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 freqCommand = new FrequencyFilterMaskCommand();
         freqCommand.maskImage = image;
         freqCommand.fourierTransformInformation = ftArray;
         freqCommand.onOff = false;

         var invCommand = new FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.inverseFastFourierTransform | FastFourierTransformCommandFlags.gray | FastFourierTransformCommandFlags.scale | FastFourierTransformCommandFlags.both);
         invCommand.run(image);
      }
   });
}
[TestMethod]
public async Task FrequencyFilterMaskConstructorExample()
{
   // 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);

   FrequencyFilterMaskCommand freqCommand = new FrequencyFilterMaskCommand();
   freqCommand.MaskImage = image;
   freqCommand.FourierTransformInformation = ftArray;
   freqCommand.OnOff = false;

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

}
Requirements

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

See Also

Reference

FrequencyFilterMaskCommand Class
FrequencyFilterMaskCommand Members
Overload List

 

 


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