Initializes a new
FastFourierTransformCommand class object with default parameters.
Syntax
Visual Basic (Declaration) | |
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Public Function New() |
C# | |
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public FastFourierTransformCommand() |
Managed Extensions for C++ | |
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public: FastFourierTransformCommand(); |
C++/CLI | |
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public:
FastFourierTransformCommand(); |
Example
Visual Basic | Copy Code |
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ImageProcessing.Core.FastFourierTransformCommand.FastFourierTransformConstructor
Public Sub FastFourierTransformConstructorExample()
RasterCodecs.Startup()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg")
Dim sizeCmd As SizeCommand = New SizeCommand(256, 256, RasterSizeFlags.Bicubic)
sizeCmd.Run(leadImage)
Dim ftArray As FourierTransformInformation
ftArray = New FourierTransformInformation(leadImage)
Dim data() As Complex
data = ftArray.Data
Dim width As Integer = ftArray.Width
Dim height As Integer = ftArray.Height
Dim command As FastFourierTransformCommand
command = New FastFourierTransformCommand
command.FourierTransformInformation = ftArray
command.Flags = FastFourierTransformCommandFlags.FastFourierTransform Or FastFourierTransformCommandFlags.Gray
command.Run(leadImage)
Dim rcRect As Rectangle
rcRect = New Rectangle(0, 0, CType((leadImage.Width / 2), Integer), CType((leadImage.Height / 2), Integer))
Dim freqCommand As FrequencyFilterCommand
freqCommand = New FrequencyFilterCommand(ftArray, rcRect, FrequencyFilterCommandFlags.InsideX Or FrequencyFilterCommandFlags.OutsideY)
Dim invCommand As FastFourierTransformCommand
invCommand = New FastFourierTransformCommand(ftArray, FastFourierTransformCommandFlags.InverseFastFourierTransform Or FastFourierTransformCommandFlags.Gray Or FastFourierTransformCommandFlags.Scale Or FastFourierTransformCommandFlags.Both)
invCommand.Run(leadImage)
RasterCodecs.Shutdown()
End Sub |
C# | Copy Code |
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ImageProcessing.Core.FastFourierTransformCommand.FastFourierTransformConstructor public void FastFourierTransformConstructorExample() { // Load an image RasterCodecs.Startup(); RasterCodecs codecs = new RasterCodecs(); codecs.ThrowExceptionsOnInvalidImages = true; RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\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); Complex[] data = ftArray.Data; int width = ftArray.Width; int height = ftArray.Height; // Apply FFT. FastFourierTransformCommand command = new FastFourierTransformCommand(); command.FourierTransformInformation = ftArray; command.Flags = FastFourierTransformCommandFlags.FastFourierTransform | FastFourierTransformCommandFlags.Gray; command.Run(image); Rectangle rcRect = new Rectangle(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); RasterCodecs.Shutdown(); } |
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
See Also