Transforms¶

Functions¶

Real Trigonometric FFTs¶

Real FFT fftReal

Real FFT initialization fftRealInit

Complex Exponential FFTs¶

Complex FFT fftComplex

Complex FFT initialization fftComplexInit

Real Sine and Cosine FFTs¶

Fourier cosine transform fftCosine

Fourier cosine transform initialization fftCosineInit

Fourier sine transform fftSine

Fourier sine transform initialization fftSineInit

Two-Dimensional FFTs¶

Complex two-dimensional FFT fft2dComplex

Convolution and Correlation¶

Real convolution/correlation convolution

Complex convolution/correlation convolutioncomplex