samples/cpp/cout_mat.cpp

An example demonstrating the serial out capabilities of cv::Mat

/*
 *
 * cvout_sample just demonstrates the serial out capabilities of cv::Mat
 * That is, cv::Mat M(...); cout << M; Now works.
 *
 */
 
#include "opencv2/core.hpp"
#include <iostream>
 
using namespace std;
using namespace cv;
 
static void help(char** argv)
{
 cout
 << "\n------------------------------------------------------------------\n"
 << " This program shows the serial out capabilities of cv::Mat\n"
 << "That is, cv::Mat M(...); cout << M; Now works.\n"
 << "Output can be formatted to OpenCV, matlab, python, numpy, csv and \n"
 << "C styles Usage:\n"
 << argv[0]
 << "\n------------------------------------------------------------------\n\n"
 << endl;
}
 
 
int main(int argc, char** argv)
{
 cv::CommandLineParser parser(argc, argv, "{help h||}");
 if (parser.has("help"))
 {
 help(argv);
 return 0;
 }
 Mat I = Mat::eye(4, 4, CV_64F);
 I.at<double>(1,1) = CV_PI;
 cout << "I = \n" << I << ";" << endl << endl;
 
 Mat r = Mat(10, 3, CV_8UC3);
 randu(r, Scalar::all(0), Scalar::all(255));
 
 cout << "r (default) = \n" << r << ";" << endl << endl;
 cout << "r (matlab) = \n" << format(r, Formatter::FMT_MATLAB) << ";" << endl << endl;
 cout << "r (python) = \n" << format(r, Formatter::FMT_PYTHON) << ";" << endl << endl;
 cout << "r (numpy) = \n" << format(r, Formatter::FMT_NUMPY) << ";" << endl << endl;
 cout << "r (csv) = \n" << format(r, Formatter::FMT_CSV) << ";" << endl << endl;
 cout << "r (c) = \n" << format(r, Formatter::FMT_C) << ";" << endl << endl;
 
 Point2f p(5, 1);
 cout << "p = " << p << ";" << endl;
 
 Point3f p3f(2, 6, 7);
 cout << "p3f = " << p3f << ";" << endl;
 
 vector<float> v;
 v.push_back(1);
 v.push_back(2);
 v.push_back(3);
 
 cout << "shortvec = " << Mat(v) << endl;
 
 vector<Point2f> points(20);
 for (size_t i = 0; i < points.size(); ++i)
 points[i] = Point2f((float)(i * 5), (float)(i % 7));
 
 cout << "points = " << points << ";" << endl;
 return 0;
}