import cv2
import imutils

gun_cascad = cv2.CascadeClassifier('gun_cascad.xml')

camera = cv2.VideoCapture(0)

firstFrame = None
gun_exist = None

while True:
   success,frame = camera.read()
   frame =imutils.resize(frame,width=500)
   gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
   gun = gun_cascad.detectMultiScale(gray,1.3,5,minSize=(100,100))
   
   if len(gun) > 0:
       gun_exist =True
       
   for (x,y,w,h) in gun:
       frame = cv2.rectangle(frame,(x,y),(x+w,y+h),(0,255,0),2)
       
   cv2.imshow("Security", frame)
   key= cv2.waitKey(1) & 0xff
   if key == ord('q'):
       break
   
if gun_exist:
    print("Gun Detected")
else:
    print("Gun not found")
    
camera.release()
cv2.destroyAllWindows()