#include <iostream>
#include <opencv2/opencv.hpp>

int main(int argc, char* argv[])
{
   char* windowNames[] = { "band 0", "band 1", "band 2" };
   
   printf("Hit ESC key to quit ...\n");

   // Pick one of these two input sources; comment out the other line.
   // Note - the movie file goes into the directory with your source code.
   cv::VideoCapture cap(0);   // open the default camera
   //cv::VideoCapture cap("131023-124754.avi");	  // open a movie file

   if(!cap.isOpened())  {// check if we succeeded
      printf("error - can't open the input source\n");
      system("PAUSE");
      return -1;
   }

   double WIDTH = cap.get(CV_CAP_PROP_FRAME_WIDTH);
   double HEIGHT = cap.get(CV_CAP_PROP_FRAME_HEIGHT);
   printf("Image width=%f, height=%f\n", WIDTH, HEIGHT);

   // Create image windows.  Meaning of flags:
   //CV_WINDOW_NORMAL enables manual resizing; CV_WINDOW_AUTOSIZE is automatic
   //  You can "or" the above choice with CV_WINDOW_KEEPRATIO, which keeps aspect ratio
   cv::namedWindow("Input image", CV_WINDOW_AUTOSIZE); 

   // Run an infinite loop until user hits the ESC key
   while (1){
      cv::Mat imgInput;
      cap >> imgInput;// get image from camera
	  if (imgInput.empty())	break;
      cv::imshow("Input image", imgInput);

	  // Split into planes
      cv::Mat planes[3];
      split( imgInput, planes );

      // Show images in the windows
      for (int i=0; i<3; i++)
          cv::imshow(windowNames[i], planes[i]);

      // wait for x ms (0 means wait until a keypress)
      if (cv::waitKey(33) == 27)
         break;// ESC is ascii 27
   }

   return EXIT_SUCCESS;
}