00001 #include <opencv2/core/core.hpp> 00002 #include <opencv2/highgui/highgui.hpp> 00003 00004 int main(int argc, char** argv) 00005 { 00006 cv::Mat image(80, 100, CV_8UC1); 00007 image.setTo(0); 00008 int r = 26; 00009 int c = 78; 00010 image.at<uchar>(r,c) = 255; 00011 image.at<uchar>(r+2,c) = 255; 00012 cv::namedWindow("Display window", cv::WINDOW_NORMAL); // Create a window for display. 00013 cv::imshow("Display window", image); // Show our image inside it. 00014 cv::waitKey(0); // Wait for a keystroke in the window 00015 return 0; 00016 }