opencv c++ hello world
#include "opencv2/opencv.hpp" #include "opencv2/highgui/highgui.hpp" using namespace cv; int main(int argc, char** argv) { //create a gui window: namedWindow("Output",1); //initialize a 120X350 matrix of black pixels: Mat output = Mat::zeros( 120, 350, CV_8UC3 ); //write text on the matrix: putText(output, "Hello World :)", cvPoint(15,70), FONT_HERSHEY_PLAIN, 3, cvScalar(0,255,0), 4); //display the image: imshow("Output", output); //wait for the user to press any key: waitKey(0); return 0; }