Tracking Your Ears

        // Capture the current frame

        cap >> frame;

        // Resize the frame

        resize(frame, frame, Size(), scalingFactor, scalingFactor, INTER_AREA);

        // Convert to grayscale

        cvtColor(frame, frameGray, CV_BGR2GRAY);

        // Equalize the histogram

        equalizeHist(frameGray, frameGray);

        // Detect left ear

        leftEarCascade.detectMultiScale(frameGray, leftEars, 1.1, 2, 0|CV_HAAR_SCALE_IMAGE, Size(30, 30) );

        // Detect right ear

        rightEarCascade.detectMultiScale(frameGray, rightEars, 1.1, 2, 0|CV_HAAR_SCALE_IMAGE, Size(30, 30) );

        // Draw green rectangle around the left ear

        for(int i = 0; i < leftEars.size(); i++)

        {

            Rect leftEarRect(leftEars[i].x, leftEars[i].y, leftEars[i].width, leftEars[i].height);

            rectangle(frame, leftEarRect, Scalar(0,255,0), 4);

        }

        // Draw green rectangle around the right ear

        for(int i = 0; i < rightEars.size(); i++)

        {

            Rect rightEarRect(rightEars[i].x, rightEars[i].y, rightEars[i].width, rightEars[i].height);

            rectangle(frame, rightEarRect, Scalar(0,255,0), 4);

        }