[OpenCV/cpp] Mat의 at함수
출처 : https://docs.opencv.org/trunk/d3/d63/classcv_1_1Mat.html _Tp& cv::Mat::at(int i0 = 0) Returns a reference to the specified array element.The template methods return a reference to the specified array element. For the sake of higher performance, the index range checks are only performed in the Debug configuration.Note that the variants with a single index (i) can be used to access elements o..