ImageGear .NET - Updated
ForwardFFT Method




ImageGear24.Processing.Advanced Assembly > ImageGear.FreqIP Namespace > ImGearFrequencyProcessing Class : ForwardFFT Method
ImGearComplexObject class object to be processed.
Specifies the method of scaling the result data.
Flag to indicate whether to use centered transform.
Performs a forward Fast Fourier Transform.
Syntax
'Declaration
 
Public Shared Function ForwardFFT( _
   ByVal value As ImGearComplexObject, _
   ByVal scalingMethod As ImGearFFTScalingMethods, _
   ByVal useCenteredTransform As Boolean _
) As ImGearComplexObject
'Usage
 
Dim value As ImGearComplexObject
Dim scalingMethod As ImGearFFTScalingMethods
Dim useCenteredTransform As Boolean
Dim value As ImGearComplexObject
 
value = ImGearFrequencyProcessing.ForwardFFT(value, scalingMethod, useCenteredTransform)

Parameters

value
ImGearComplexObject class object to be processed.
scalingMethod
Specifies the method of scaling the result data.
useCenteredTransform
Flag to indicate whether to use centered transform.

Return Value

Remarks
This method performs a forward Fast Fourier Transform.

Note that the user must keep track how the transform is centered in the forward FFT in order to know how to de-center it during the inverse FFT, same goes for the scaling method.

Before using this method, like other frequency processing methods, InitializeFFTW method must be called first to initialize the support for FFTW.

Can be applied only to valid ImGearComplexObject class object.

ImGearFrequencyProcessingVerifier.CanApplyForwardFFT method can be called to check whether the operation can be performed or not.

See Also

Reference

ImGearFrequencyProcessing Class
ImGearFrequencyProcessing Members
ImGearComplexObject Class
ImGearFFTScalingMethods Enumeration