start_face_recon_app.py 文件源码

def add_person(people_folder, shape):
    """ Funtion to add pictures of a person
    """
    person_name = input('What is the name of the new person: ').lower()
    folder = people_folder + person_name
    if not os.path.exists(folder):
        input("I will now take 20 pictures. Press ENTER when ready.")
        os.mkdir(folder)
        video = VideoCamera()
        detector = FaceDetector('face_recognition_system/frontal_face.xml')
        counter = 1
        timer = 0
        cv2.namedWindow('Video Feed', cv2.WINDOW_AUTOSIZE)
        cv2.namedWindow('Saved Face', cv2.WINDOW_NORMAL)
        while counter < 21:
            frame = video.get_frame()
            face_coord = detector.detect(frame)
            if len(face_coord):
                frame, face_img = get_images(frame, face_coord, shape)
                # save a face every second, we start from an offset '5' because
                # the first frame of the camera gets very high intensity
                # readings.
                if timer % 100 == 5:
                    cv2.imwrite(folder + '/' + str(counter) + '.jpg',
                                face_img[0])
                    print ('Images Saved:' + str(counter))
                    counter += 1
                    cv2.imshow('Saved Face', face_img[0])

            cv2.imshow('Video Feed', frame)
            cv2.waitKey(50)
            timer += 5
    else:
        print ("This name already exists.")
        sys.exit()