Code

!pip3 install gnupg
import roslib
import rospy
import jupyros as jr
import rosbag
import cv2
from cv_bridge import CvBridge
from sensor_msgs.msg import Image, CompressedImage
import matplotlib.pyplot as plt
import numpy as np

bridge = CvBridge()
with rosbag.Bag('images.bag', 'r') as image_bag:
    for topic, image_message, t in image_bag.read_messages():
        cv_image = bridge.imgmsg_to_cv2(image_message, "bgr8")
        cv2.imshow("image", cv_image)
        break