50-Haar_Cascade_video.py

import cv2

cap = cv2.VideoCapture("D:\\OpenCV_Files\\Test_Videos\\faces.mp4")

face_cascade = cv2.CascadeClassifier("D:\\OpenCV_Files\\Haar_Cascade\\Frontal_Face.xml")


while True:
    ret,frame = cap.read()
    gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)

    faces = face_cascade.detectMultiScale(gray,1.1,2)

    for (x,y,w,h) in faces:
        cv2.rectangle(frame,(x,y),(x+w,y+h),(0,255,255),2)

    cv2.imshow("img",frame)

    if cv2.waitKey(5) & 0xFF == ord("q"):
        break

cap.release()
cv2.destroyAllWindows()