OpenCV 實現對圖片截圖小Demo

一個opencv小案例 , 讀取一張圖片後通過鼠標進行截圖; opencv 的配置就不多數了,百度很多; #include <istream>#include <opencv2/opencv.hpp> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/i

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