마우스 이벤트를 사용하여 setmousecallback을 사용하여 opencv에서 루프를 내보내는 방법

Question

openCV의 setmousecallback() 함수를 사용하여 사용자가 마우스 오른쪽 버튼을 클릭하자마자 while 루프 (웹캠 비디오 프레임)에서 벗어납니다. 그러나 프로그램이 멈추는 중입니다. 누군가가 아래

내가 사용하고있는 코드입니다 .. 제발 도움이 될 수 있습니다,

//mouse callback funtion 
void getMouseLoc(int event, int xCor, int yCor, int flags, void* userInput) 
{ 
Point3_<int> *mouseInputs = (Point3_<int>*)userInput; 
mouseInputs->x= xCor; 
mouseInputs->y = yCor; 
mouseInputs->z = event; 
} 

// for loop 
for(; ;) 
{ 
camera >> frame; 
imshow("averageFrame", aver`enter code here`ageFrame); 
setMouseCallback("averageFrame", getMouseLoc, &mouseInputs); 
if(mouseInputs.z == EVENT_RBUTTONDOWN) 
{ 
cout << "topmost cordinates of ROI selected by user" << endl; 
count << mouseInputs.x << " and " << mouseInputs.y << endl; 
break; 
} 
} 

Answer 1

//mouse callback function 
void getMouseLoc(int event, int xCor, int yCor, int flags, void* userInput) 
{ 
    Point3_<int> *mouseInputs = (Point3_<int>*)userInput; 
    mouseInputs->x= xCor; 
    mouseInputs->y = yCor; 
    mouseInputs->z = event; 
} 

// this does not have to be inside the loop, once is enough:   
Point3_<int> mouseInputs; 
setMouseCallback("averageFrame", getMouseLoc, &mouseInputs); 

// for loop 
for(; ;) 
{ 
    camera >> frame; 
    imshow("averageFrame", aver`enter code here`ageFrame); 

    // you're missing a call to waitKey(), else your image won't get updated !! 
    int k = waitKey(40); 
    if (k == 27) break; // esc pressed. 

    if(mouseInputs.z == EVENT_RBUTTONDOWN) 
    { 
     cout << "topmost cordinates of ROI selected by user" << endl; 
     count << mouseInputs.x << " and " << mouseInputs.y << endl; 
     break; 
    } 
}