faceMeshBasics.py

import cv2
import mediapipe as mp
import time

pTime = 0
# cap = cv2.VideoCapture("vids/3.mp4")
cap = cv2.VideoCapture(0) # 0 for webcam

mpDraw = mp.solutions.drawing_utils
mpFaceMesh = mp.solutions.face_mesh
faceMesh = mpFaceMesh.FaceMesh(max_num_faces=2)
drawSpec = mpDraw.DrawingSpec(thickness=1, circle_radius=2)

while True:
    success, img = cap.read()
    imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
    results = faceMesh.process(imgRGB)
    if results.multi_face_landmarks:
        for faceLms in results.multi_face_landmarks:
            mpDraw.draw_landmarks(img, faceLms, mpFaceMesh.FACEMESH_CONTOURS, drawSpec, drawSpec)

            # To get the facial landmarks/points
            for id, lm in enumerate(faceLms.landmark):
                # print(lm)
                ih, iw, ic = img.shape
                x, y = int(lm.x*iw), int(lm.y*ih)
                print(id, x, y)

    cTime = time.time()
    fps = 1/(cTime-pTime)
    cv2.putText(img, f'FPS: {int(fps)}', (20, 70), cv2.FONT_HERSHEY_PLAIN, 3, (255, 0, 255), 3)
    cv2.imshow("Image", img)
    cv2.waitKey(1)