opencv报错Error: Assertion failed ((unsigned)i1 < (unsigned)size.p[1]) in cv::Mat_<class cv::Vec<unsig

完整错误:

Error: Assertion failed ((unsigned)i1 < (unsigned)size.p[1]) in cv::Mat_ >::operator (),

解决:看访问mat下标是否越界,注意细节,尤其是控制变量范围的地方

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