facemark-fit.cpp

vector<Rect> faces;
faceDetector(img, faces, face_cascade);

// Check if faces detected or not
if (faces.size() != 0) {
// We assume a single face so we look at the first only
  cv::rectangle(img, faces[0], Scalar(255, 0, 0), 2);
  vector<vector<Point2f> > shapes;
  
  if (facemark->fit(img, faces, shapes)) {
    // Draw the detected landmarks
    drawFacemarks(img, shapes[0], cv::Scalar(0, 0, 255));
  }
} else {
    cout << "Faces not detected." << endl;
}