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我想在 openCV 中创建一个频率掩码,但不知道如何去做。频率掩模将是一个理想的带通滤波器,因此图像滤波将在频域中完成。对于这个例子,假设 100Hz-200Hz 之间的频率将被耦合。
有人知道怎么做吗?
谢谢是提前!