InputArray这个接口类可以是Mat、Mat_、Mat_<T, m, n>、vector、vector<vector>、vector;
读取并显示一幅图片,判断是否成功读取;
Mat left_image =imread("D:\\left_picture.BMP",0);//判断图像是否读取到,两个方法data和empty()if(!left_image.data){
cout <<"can not load picture file!";return-1;}namedWindow("right_picture");imshow("left_picture", left_image);waitKey(6000);