opencv 截图并保存(转载) 代码功能:选择图像中矩形区,按S键截图并保存,Q键退出. #include<opencv2/opencv.hpp> #include<iostream> using namespace std;using namespace cv; Rect select;bool select_flag = false;Mat img, showImg; void S_on_Mouse(int event, int x, int y, int flags, vo
一.鼠标截图 #include<opencv2/opencv.hpp> #include<iostream> using namespace cv; using namespace std; Mat img=imread("E://1.jpg"); Mat temp=img.clone(); Mat ROI; Point pt; bool flag=false; void onMouse(int event,int x,int y,int flag,void*