为啥图像混合无法执行.. 我把4 5 6 7删了就可以 我这函数调用哪里错了

Question

int main(){
Mat image = imread("2.jpg",199);
Mat logo = imread("3.jpg");
Mat imageROI;//4
imageROI = image(Rect(200, 250, logo.cols, logo.rows));//5
Mat mask = imread("3.jpg",0);//6
logo.copyTo(imageROI, mask);//7
namedWindow("mixture");
imshow("mixture", image);
waitKey();
return 0;
}

Answer 1

https://zhidao.baidu.com/question/361978838297812972.html