Leadtools.ImageProcessing.Core Namespace : FastFourierTransformCommand Class |
public class FastFourierTransformCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand
'Declaration Public Class FastFourierTransformCommand Inherits Leadtools.ImageProcessing.RasterCommand Implements Leadtools.ImageProcessing.IRasterCommand
'Usage Dim instance As FastFourierTransformCommand
public sealed class FastFourierTransformCommand : Leadtools.ImageProcessing.IRasterCommand
function Leadtools.ImageProcessing.Core.FastFourierTransformCommand()
public ref class FastFourierTransformCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand
Public Sub FastFourierTransformCommandExample() 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 sizecommand As SizeCommand = New SizeCommand(256, 256, RasterSizeFlags.Bicubic) sizecommand.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(FTArray, rcRect, FrequencyFilterCommandFlags.InsideX Or FrequencyFilterCommandFlags.OutsideY) 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 FastFourierTransformCommandExample() { // 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, Leadtools.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(FTArray, rcRect, FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.OutsideY); 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 FastFourierTransformCommandExample() { 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(FTArray, rcRect, FrequencyFilterCommandFlags.insideX | FrequencyFilterCommandFlags.outsideY); var InvCommand = new FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.inverseFastFourierTransform | FastFourierTransformCommandFlags.gray | FastFourierTransformCommandFlags.scale | FastFourierTransformCommandFlags.both); InvCommand.run(image); } }); }
[TestMethod] public async Task FastFourierTransformCommandExample() { // 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, Leadtools.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(FTArray, rcRect, FrequencyFilterCommandFlags.InsideX | FrequencyFilterCommandFlags.OutsideY); FastFourierTransformCommand InvCommand = new FastFourierTransformCommand(FTArray, FastFourierTransformCommandFlags.InverseFastFourierTransform | FastFourierTransformCommandFlags.Gray | FastFourierTransformCommandFlags.Scale | FastFourierTransformCommandFlags.Both); InvCommand.Run(image); }
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
FastFourierTransformCommand Members
Leadtools.ImageProcessing.Core Namespace
Removing Noise
FrequencyFilterMaskCommand Class
DiscreteFourierTransformCommand Class
FourierTransformDisplayCommand Class
Leadtools.ImageProcessing.Effects.AverageCommand
MedianCommand Class
Leadtools.ImageProcessing.Color.IntensityDetectCommand
Leadtools.ImageProcessing.Effects.SpatialFilterCommand
MaximumCommand Class
MinimumCommand Class
Leadtools.ImageProcessing.Effects.AddNoiseCommand
Leadtools.ImageProcessing.Effects.BinaryFilterCommand
Leadtools.ImageProcessing.Color.ChangeHueSaturationIntensityCommand
Leadtools.ImageProcessing.Color.ColorThresholdCommand
Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand
FrequencyFilterCommand Class
Leadtools.ImageProcessing.Effects.StatisticsInformationCommand
Leadtools.ImageProcessing.Effects.FeretsDiameterCommand
Leadtools.ImageProcessing.Effects.ObjectInformationCommand
Leadtools.ImageProcessing.Effects.RegionContourPointsCommand
Leadtools.ImageProcessing.Color.MathematicalFunctionCommand
Leadtools.ImageProcessing.SpecialEffects.RevEffectCommand
Leadtools.ImageProcessing.Color.SegmentCommand
SubtractBackgroundCommand Class
Leadtools.ImageProcessing.Effects.UserFilterCommand
Leadtools.ImageProcessing.SpecialEffects.FragmentCommand
Leadtools.ImageProcessing.Effects.HighPassCommand
Leadtools.ImageProcessing.Effects.UnsharpMaskCommand