ImageGear21.Processing.Advanced Assembly > ImageGear.FreqIP Namespace > ImGearFrequencyProcessing Class : ForwardFFT Method |
'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)
public static ImGearComplexObject ForwardFFT( ImGearComplexObject value, ImGearFFTScalingMethods scalingMethod, bool useCenteredTransform )
public: static ImGearComplexObject* ForwardFFT( ImGearComplexObject* value, ImGearFFTScalingMethods scalingMethod, bool useCenteredTransform )
public: static ImGearComplexObject^ ForwardFFT( ImGearComplexObject^ value, ImGearFFTScalingMethods scalingMethod, bool useCenteredTransform )
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.