Control mouse pointer with eyes.py

import cv2
import mediapipe
import pyautogui
face_mesh_landmarks = mediapipe.solutions.face_mesh.FaceMesh(refine_landmarks=True)
cam = cv2.VideoCapture(0)
screen_w, screen_h = pyautogui.size()
while True:
    _,image = cam.read()
    image = cv2.flip(image, 1)
    window_h,window_w,_ = image.shape
    rgb_image = cv2.cvtColor(image,cv2.COLOR_BGR2RGB)
    processed_image = face_mesh_landmarks.process(rgb_image)
    all_face_landmark_points = processed_image.multi_face_landmarks
    if all_face_landmark_points:
        one_face_landmark_points = all_face_landmark_points[0].landmark
        for id, landmark_point in enumerate(one_face_landmark_points[474:478]):
            x = int(landmark_point.x * window_w)
            y = int(landmark_point.y * window_h)
            #print(x,y)
            if id==1:
                mouse_x = int(screen_w / window_w * x)
                mouse_y = int(screen_h / window_h * y)
                pyautogui.moveTo(mouse_x, mouse_y)

            cv2.circle(image,(x,y), 3, (255,0,0))
        left_eye = [one_face_landmark_points[145], one_face_landmark_points[159]]
        for landmark_point in left_eye:
            x = int(landmark_point.x * window_w)
            y = int(landmark_point.y * window_h)
            #print(x,y)
            cv2.circle(image,(x,y), 3, (0,0,255))
        if(left_eye[0].y - left_eye[1].y<0.01):
            pyautogui.click()
            pyautogui.sleep(2)
            print('mouse clicked')
    cv2.imshow("EYE CONTROLLED MOUSE", image)
    key = cv2.waitKey(100)
    if key == 27:
        break
cam.release()
cv2.destroyAllWindows()