// fbc_cv是免费软件，并且使用与OpenCV相同的许可证
#ifndef FBC_CV_DFT_HPP_
#define FBC_CV_DFT_HPP_
/* reference: include/opencv2/core.hpp
modules/core/src/dxt.cpp
*/
#include "core/mat.hpp"
#include "core/core.hpp"
namespace fbc {
template<typename dump> static int DFTFactorize(int n, int* factors);
template<typename dump> static void DFTInit(int n0, int nf, int* factors, int* itab, int elem_size, void
