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copied!<p>What you are looking for is known as <strong>template matching</strong> in OpenCV.</p> <p>To get acquainted with OpenCV you should start reading <a href="https://stackoverflow.com/a/5680049/176769">some tutorials</a>, besides the books there are some good ones on the web. As a C++ guy, you will probably <strong>use the C++ interface</strong> of OpenCV which uses <code>cv::Mat</code> as the main data structure to represent images. If you see the <code>IplImage</code> data type being used, know it's from the C interface.</p> <p>After the preliminaries, you will eventually need to learn how to read frames from a video:</p> <ul> <li><a href="https://stackoverflow.com/a/14838999/176769">Reading a video with openCV</a></li> <li><a href="https://stackoverflow.com/a/14777135/176769">Read/write avi video using openCV</a></li> </ul> <p>and then how to process those frames, individually:</p> <ul> <li><a href="https://stackoverflow.com/a/3919216/176769">OpenCV every frame processing</a> (C interface)</li> <li><a href="https://stackoverflow.com/a/10788739/176769">How to find object on video using OpenCV</a></li> <li><a href="https://stackoverflow.com/a/9929714/176769">Object traking within a video file</a></li> <li><a href="https://stackoverflow.com/a/13235942/176769">Very Slow Processing of my Opencv Application</a></li> </ul> <p>Finally, you will investigate how <a href="http://docs.opencv.org/doc/tutorials/imgproc/histograms/template_matching/template_matching.html" rel="nofollow noreferrer">template matching</a> works:</p> <ul> <li><a href="https://stackoverflow.com/a/15606231/176769">How can I perform Template Matching process in SUB-IMAGE extracted from ORIGINAL-IMAGE and Display the results in Original Image</a></li> <li><a href="http://opencv-code.com/quick-tips/how-to-handle-template-matching-with-multiple-occurences/" rel="nofollow noreferrer">How to handle template matching with multiple occurences</a> </li> </ul> <p>There are other ways to track objects besides template matching, check these references:</p> <ul> <li><a href="https://computer-vision-talks.com/2011-07-13-comparison-of-the-opencv-feature-detection-algorithms/" rel="nofollow noreferrer">Comparison of OpenCV's feature detection algorithms</a></li> <li><a href="https://www.learnopencv.com/object-tracking-using-opencv-cpp-python/" rel="nofollow noreferrer">Object Tracking using OpenCV (C++/Python)</a></li> </ul>

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