ImageGear for .NET
Fast Fourier Transform
| ImageGear for .NET User Guide > Using ImageGear for .NET > Using ImageGear.FreqIP Namespace > Fast Fourier Transform |
Fast Fourier Transform (FFT) performs a multidimensional FFT on the input object specified by Input File. FFT is based on the FFTW 3 library (see www.fftw.org).
Before using these functions, like other frequency processing functions, ImGearFrequencyProcessing.InitializeFFTW Method() must be called first to enable support for FFTW.