How to calculate Elapsed time in OpenCV using C++?

Here, we will understand how to calculate the elapsed time using OpenCV.

The following program calculates the elapsed time in OpenCV using C++.

Example

#include//OpenCV header to use VideoCapture class//
#include
using namespace std;
using namespace cv;
int main() {
   Mat myImage;//Declaring a matrix to load the frames//
   namedWindow("Video Player");//Declaring the video to show the video//
   VideoCapture cap("video.mp4");//Declaring an object to load video from device//
   if (!cap.isOpened()){ //This section prompt an error message if no video stream is found//
      cout > myImage;
      int elapsed_time;//Declaring an integer variable to store the elapsed time//
      elapsed_time=cap.get(CAP_PROP_POS_MSEC);//Reading the elapsed time//
      cout 
This program will play the video and will show elapsed time in the console window.

Output