example_09-01.cpp

// Create a window and display an image in that window.
//
#include <opencv2/opencv.hpp>

using namespace std;

int main(int argc, char** argv) {

  // Create a named window with the name of the file
  //
  cv::namedWindow( argv[1], 1 );

  // Load the image from the given filename
  //
  cv::Mat img = cv::imread( argv[1] );

  // Show the image in the named window
  //
  cv::imshow( argv[1], img );

  // Idle until the user hits the Esc key
  //
  while( true ) {
    if( cv::waitKey( 100 /* milliseconds */ ) == 27 ) break;
  }

  // Clean up and don't be piggies
  //
  cv::destroyWindow( argv[1] );

  exit(0);
}