Raw in-place FFT (forward or inverse). \n
* The lowest frequency can be centered after forward, or
* can be restored to the origin before inverse. \n
* The result can be normalized after the transform by sqrt(w*h) [1] or by (w*h) [2],
* or left unnormalized [0]. \n
* Images must be of the same size and both must be of type float complex.
*
* \verbatim im.ProcessFFTraw(image: imImage, inverse: number, center: number, normalize: number) [in Lua 5] \endverbatim
* \ingroup fourier
Raw in-place FFT (forward or inverse). \n * The lowest frequency can be centered after forward, or * can be restored to the origin before inverse. \n * The result can be normalized after the transform by sqrt(w*h) [1] or by (w*h) [2], * or left unnormalized [0]. \n * Images must be of the same size and both must be of type float complex. * * \verbatim im.ProcessFFTraw(image: imImage, inverse: number, center: number, normalize: number) [in Lua 5] \endverbatim * \ingroup fourier