import cv2
import mediapipe as mp
import math

mp_face_mesh = mp.solutions.face_mesh
face_mesh = mp_face_mesh.FaceMesh(static_image_mode=False, max_num_faces=1)
mp_drawing = mp.solutions.drawing_utils

def calculate_angle(p1,p2):
    delta_y = p2[1] - p1[1]
    delta_x = p2[0] - p1[0]
    return math.degrees(math.atan2(delta_y, delta_x))

cap = cv2.VideoCapture(0)