* _wave, int inv_itab);
template<typename T> static void DFT_32f(const Complex<T>* src, Complex<T>* dst, int n, int nf, const int* factors, const int* itab, const Complex<T>* wave, int tab_size, const void* spec, Complex<T>* buf, int flags, double _scale);
template<typename T> static void RealDFT_32f(const T* src, T* dst, int n, int nf, int* factors, const int* itab, const Complex<T>* wave, int tab_size, const void* spec, Complex<T>* buf, int flags, double _scale);
template<typename T> static void CCSIDFT_32f(const T* src, T* dst, int n, int nf, int* factors, const int* itab, const Complex<T>* wave, int tab_size, const void* spec, Complex<T>* buf, int flags,
