图像滤波函数 filter2D 使用错误

error: filter2D’ was not declared in this scope

错误原因:

google: 'filter2D' : is not a member of 'cv' 

没有添加对应的库:

#include<opencv2/imgproc/imgproc.hpp>


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转载自blog.csdn.net/lzp1510681927/article/details/80233391