├── README.md
├── get_image.py
└── stream.py


/README.md:
--------------------------------------------------------------------------------
1 | # cognex-camera-with-python
2 | 
3 | ## pip install telnetlib3
4 | ## pip install pyftpdlib
5 | ## pip install opencv-python
6 | 


--------------------------------------------------------------------------------
/get_image.py:
--------------------------------------------------------------------------------
 1 | import sys
 2 | import telnetlib
 3 | from ftplib import FTP
 4 | import time
 5 | import cv2
 6 | 
 7 | # cognex's config
 8 | ip = "169.254.89.210"
 9 | user = 'admin'
10 | password = ''
11 | 
12 | # telnet login
13 | tn = telnetlib.Telnet(ip)
14 | telnet_user = user+'\r\n'
15 | tn.write(telnet_user.encode('ascii')) #the user name is admin
16 | tn.write("\r\n".encode('ascii')) #there is no password - just return - now logged in
17 | #print('Telnet Logged in')
18 | 
19 | # capture
20 | tn.write(b"SE8\r\n")
21 | 
22 | # ftp login
23 | ftp = FTP(ip)
24 | ftp.login(user)
25 | #print('FTP logged in')
26 | 
27 | # show all file in cognex
28 | # files_list = ftp.dir()
29 | # print(files_list)
30 | 
31 | # download file from cognex
32 | filename = 'image.bmp'
33 | lf = open(filename, "wb")
34 | ftp.retrbinary("RETR " + filename, lf.write)
35 | lf.close()
36 | 
37 | image = cv2.imread('image.bmp')
38 | cv2.imshow('Image', image)
39 | 
40 | cv2.waitKey(0)
41 | 


--------------------------------------------------------------------------------
/stream.py:
--------------------------------------------------------------------------------
 1 | import sys
 2 | import telnetlib
 3 | from ftplib import FTP
 4 | import time
 5 | import cv2
 6 | 
 7 | # cognex's config
 8 | ip = "169.254.89.210"
 9 | user = 'admin'
10 | password = ''
11 | 
12 | #out = cv2.VideoWriter('output.mp4', -1, 20.0, (640,480))
13 | 
14 | while True:
15 | 
16 |     start_time = time.time()
17 |     tn = telnetlib.Telnet(ip)
18 |     telnet_user = user+'\r\n'
19 |     tn.write(telnet_user.encode('ascii'))
20 |     tn.write("\r\n".encode('ascii'))
21 | 
22 |     #time.sleep(0.1)
23 |     tn.write(b"SE8\r\n")
24 |     #time.sleep(0.1)
25 | 
26 | 
27 |     ftp = FTP(ip)
28 |     ftp.login(user)
29 | 
30 |     #ftp.sendcmd('get image.bmp\r\n')
31 |     #print("--- %s seconds ---" % (time.time() - start_time))
32 | 
33 |     filename = 'image.bmp'
34 |     rename = 'image_get.bmp'
35 |     lf = open(rename, "wb")
36 |     ftp.retrbinary("RETR " + filename, lf.write)
37 |     lf.close()
38 | 
39 |     image = cv2.imread(rename)
40 |     cv2.imshow('Image', image)
41 |     print("--- %s seconds ---" % (time.time() - start_time))
42 |     #out.write(image)
43 | 
44 |     if cv2.waitKey(1) & 0xFF == ord('q'):
45 |         break
46 | 
47 | cv2.destroyAllWindows()
48 | 


--------------------------------------------------------------------------------