Opencv 频域转换

频域在图像增加，滤波，压缩，获取特征，对图像全局处理。 Opencv 代码：discrete_fourier_transform.cpp #include "opencv2/core.hpp" #include "opencv2/imgproc.hpp" #include "opencv2/imgcodecs.hpp" #include "opencv2/highgui.hpp" #include

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