cascade.py

import numpy as np
import cv2

face_cascade = cv2.CascadeClassifier(r'C:\Users\Rag9704\Desktop\python codes\haarcascade_frontalface_default.xml')

eye_cascade = cv2.CascadeClassifier(r'C:\Users\Rag9704\Desktop\python codes\haarcascade_eye.xml')

cap = cv2.VideoCapture(0)

while True :
    ret,img = cap.read()
    gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
    faces= face_cascade.detectMultiScale(gray,1.3,5)
    for (x,y,w,h) in faces:
        cv2.rectangle(img,(x,y),(x+w,y+h),(2255,0,0),2)
        roi_gray = gray[y:y+h,x:x+w]
        roi_color = img[y:y+h,x:x+w]

        eyes = eye_cascade.detectMultiScale(roi_gray)
        for (ex,ey,ew,eh) in eyes:
            cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)
    cv2.imshow('img',img)
    k = cv2.waitKey(30) & 0xff
    if k ==27:
        break
cap.release()
cv2.destroyAllWindowa()