tavid.py

import cv2
import numpy as np

width_res = 640
height_res = 480

def readcam1():
    cam1 = cv2.VideoCapture(0)
    print("[INFO] stating camera 1")
    cam1.set(3,width_res)
    cam1.set(4,height_res)
    while True:
        if (cam1.isOpened() == None):
            print("Failed to connect to the camera 1")
        _,frame = cam1.read()
        if frame is None:
            print("Camera1 ==> Failed to capture an image")
        cv2.imshow('cam1',frame)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
        
def readcam2():
    cam2 = cv2.VideoCapture(2)
    print("[INFO] stating camera 2")
    cam2.set(3,width_res)
    cam2.set(4,height_res)
    while True:
        if (cam2.isOpened() == None):
            print("Failed to connect to the camera 2")
        _,frame2 = cam2.read()
        if frame2 is None:
            print("Camera2 ==> Failed to capture an image")
        cv2.imshow('cam2',frame2)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

readcam1()
readcam2()

cv2.destroyAllWindows()