public FrequencyFilterCommand()
Public Function New()
public:
FrequencyFilterCommand();
Run the FrequencyFilterCommand on an image.
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, @"ImageProcessingDemo\FourierTransform.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";
}
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, "ImageProcessingDemo\\FourierTransform.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
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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