Hands-On Robotics Programming with C++

Detecting the right eye

The programming logic for detecting the right eye is very similar to detecting the left eye. The only thing that we have to change is the classifier name and some variable names to distinguish the left and right eyes. To detect the right eye, perform these steps:

1. Load the haarcascade_righteye_2splits cascade classifier:

CascadeClassifier eyeDetectorright("haarcascade_righteye_2splits.xml");

2. Inside the face-detection for loop, find the face region. Then, use the detectMultiScale function to detect the right eye. Use the circle function to create a green circle around the right eye. To do so, use the following code:

Mat faceroi = videofeed(face[f]); vector<Rect>  righteye;eyeDetectorright.detectMultiScale(faceROI, ...