小编Nem*_*rai的帖子

为什么我的代码中没有显示矩形？

import cv2

im = cv2.imread('players.bmp')

#im.shape >>returns (765,1365,3)

cv2.rectangle(im, (64,1248), (191,1311), (0,255,0), 2)
cv2.namedWindow("image", cv2.WINDOW_NORMAL)
cv2.imshow('image', im)
cv2.waitKey(0)
cv2.destroyAllWindows()

这是服务器端代码：

import socket
import sys

HOST = ''   # Symbolic name, meaning all available interfaces
PORT = 7800 # Arbitrary non-privileged port

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print ('Socket created')

#Bind socket to local host and port
try:
    s.bind((HOST, PORT))
except socket.error as msg:
    print ('Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
    sys.exit()

print 'Socket bind complete'

#Start listening on socket
s.listen(10)
print ('Socket now listening')

#now keep talking with the client
while 1: …