import numpy as np
import cv2
hand_cascade = cv2.CascadeClassifier('hand.xml')
cap = cv2.VideoCapture(0)

while(True):
    ret, frame = cap.read()
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
   # cv2.imshow('frame',gray)
    hands= hand_cascade.detectMultiScale(gray, 1.1, 5)
    for(x,y,w,h) in hands:
            cv2.rectangle(frame, (x,y), (x+w, y+h), (0, 255, 0), 2)
    cv2.imshow('frame',frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()