udp_image_receiver.py

import socket
import cv2
import base64
import numpy as np


def udp_listener(port):
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    server_address = ('', port)
    sock.bind(server_address)
    print("LISTNENING PORT")

    data = ''
    """data,_ = sock.recvfrom(65536)
    sock.close()
    nparr = np.frombuffer(data, np.uint8)
    image = cv2.imdecode(nparr, cv2.IMREAD_COLOR)

    cv2.imshow("Received image", image)
    cv2.waitKey(0)
    cv2.destoryAllWindows()"""
    while True:
        packet, address = sock.recvfrom(4096)
        data += packet.decode('utf-8')

        if len(packet) < 4096:

            image_data = base64.b64decode(data)
            nparr = np.frombuffer(image_data, np.uint8)
            image = cv2.imdecode(nparr, cv2.IMREAD_COLOR)

            cv2.imshow("Received image", image)
            cv2.waitKey(0)
            cv2.destoryAllWindows()

            data = ''

    sock.close()

if __name__ == "__main__":
    port=10000
    udp_listener(port)