Dct
Performs a forward or inverse discrete Cosine transform of 1D or 2D array.
DftComplex
Performs a forward DFT on an already complex image (Complex-to-Complex).
DftReal
Performs a forward DFT, converting a 1-channel image into its 2-channel Complex spectrum.
GetOptimalDFTSize
Returns the optimal DFT size for a given vector size. DFT performance is not a monotonic function of …
Idct
Performs a inverse discrete Cosine transform of 1D or 2D array.
IdftComplex
Performs an inverse DFT, converting a 2-channel Complex spectrum into another 2-channel Complex …
IdftReal
Performs an inverse DFT, converting a 2-channel Complex spectrum back into a 1-channel image.
MulSpectrums
Performs the per-element multiplication of two Fourier spectrums.