ros2cam

import rclpy
from rclpy.node import Node
from sensor_msgs.msg import Image
import cv2
from cv_bridge import CvBridge

class ImageSubscriber(Node):

    def __init__(self):
        super().__init__('image_subscriber')
        self.subscription = self.create_subscription(
            Image,
            '/camera_dell',
            self.listener_callback,
            10)
        self.subscription  # prevent unused variable warning
        self.bridge = CvBridge()

    def listener_callback(self, msg):
        self.get_logger().info('Receiving image')
        cv_image = self.bridge.imgmsg_to_cv2(msg, "bgr8")
        cv2.imshow("Camera Image", cv_image)
        cv2.waitKey(1)

def main(args=None):
    rclpy.init(args=args)
    image_subscriber = ImageSubscriber()
    rclpy.spin(image_subscriber)
    image_subscriber.destroy_node()
    rclpy.shutdown()

if __name__ == '__main__':
    main()