OpenCV/Basics/MatrixMultiplication

MatrixMultiplication.cxx

#include "cv.h"
 
#include <iostream>
 
int main()
{
  cv::Mat A(3,3,CV_32FC1);
  for(unsigned int i = 0; i < 3; i++)
    {
    for(unsigned int j = 0; j < 3; j++)
      {
      A.at<float>(i,j) = 1;
      }
    }
 
  std::cout << "A: " << A << std::endl;
 
  cv::Mat B(3,3,CV_32FC1);
 
  for(unsigned int i = 0; i < 3; i++)
    {
    for(unsigned int j = 0; j < 3; j++)
      {
      B.at<float>(i,j) = 2;
      }
    }
 
  std::cout << "B: " << B << std::endl;
 
  cv::Mat result = A * B;
 
  std::cout << "result: " << result << std::endl;
 
  return 0;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
 
PROJECT(MatrixMultiplication)
 
FIND_PACKAGE(OpenCV REQUIRED )
INCLUDE_DIRECTORIES( ${OPENCV_INCLUDE_DIR} )
 
ADD_EXECUTABLE(MatrixMultiplication MatrixMultiplication.cxx)
TARGET_LINK_LIBRARIES(MatrixMultiplication ${OpenCV_LIBS})