Mat类编写矩阵乘法和加法操作

#include <iostream>#include "opencv2/opencv.hpp"using namespace std;using namespace cv;Mat Inputmatrix(void){int row, column;float element;cout << "please input the first matrix(size):";cin >> row >> column;Mat matrix1(row, column, CV_32FC1);//类型问题我没搞懂cout << "please input the matrix(elements):";for (int i = 0; i < matrix1.rows; ++i)for (int j = 0; j < matrix1.cols; ++j){cin >> element;matrix1.at<float>(i, j) = element;}return matrix1;}Mat operate_function(Mat matrix1, Mat matrix2){char ch;cout << "please input the operation:";cin >> ch;cout << "output matrix is:" << endl;if (ch == '+'){if (matrix1.rows!= matrix2.rows || matrix1.cols != matrix2.cols){cout << "error!";exit(0);}Mat matrixx = matrix1 + matrix2;return matrixx;}else if (ch == '*'){if (matrix1.cols != matrix2.rows){cout << "error!";exit(0);}Mat matrixx = matrix1*matrix2;return matrixx;}}int main(int argc, char* argv[]){Mat matrix1, matrix2;matrix1 = Inputmatrix();matrix2 = Inputmatrix();Mat matrix3 = operate_function(matrix1, matrix2);cout << matrix3;waitKey(0);return 0;}
用Mat类不用自己考虑动态内存分配和释放，
*（矩阵相乘）参与点乘的两个Mat矩阵的数据类型（type）只能是 CV_32F、 CV_64FC1、 CV_32FC2、 CV_64FC2 这4种类型中的一种。若选用其他类型，比如CV_8UC1，编译器会报错