opencv webcam record

crop_for_zali.py

import numpy as np
import cv2

x1, x2 = 100,400
y1, y2 = 10, 310
cap = cv2.VideoCapture(0)
while(True):
    ret, frame = cap.read()    
    r = cv2.rectangle(frame,(y1,x2),(y2,x1),(0,255,0),3)
    crop = frame[x1:x2, y1:y2]
    cv2.imshow('frame',r);
    cv2.imshow('frame2',crop);
    
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()