Raspberry Pi writes a few simple programs in Python 5: Send images with a socket

Use the socket to pass the camera image to the PC.

After you've installed OPENCV and Python, identify yourself as the server-side device IP:

The first is the server-side server.py:

import socketimport cv2import numpyaddress =  (' 127.0.0.1 ',  8002) s =  Socket.socket (Socket.af_inet, socket. SOCK_STREAM) S.bind (address) S.listen (True) Def recvall (sock, count):     buf =  b '     while count:        newbuf  = SOCK.RECV (count)         if not newbuf: return  None        buf += newbuf         count -= len (NEWBUF)     return bufconn, addr  = s.accept () While 1:    length = recvall (conn,16)      stringdata = recvall (conn, int (length))     data =  Numpy.fromstring (stringdata, dtype= ' uint8 ')     decimg=cv2.imdecode (data, 1)     cv2.imshow (' SERVER ', decimg)     if cv2.waitkey (Ten)  ==  27:        break    s.close () Cv2.destroyallwindows ()

And then the client client.py:

import socketimport cv2import numpyaddress =  (' 127.0.0.1 ',  8002) sock =  socket.socket (Socket.af_inet,socket. SOCK_STREAM) Sock.connect (address) capture = cv2. Videocapture (0) Ret, frame = capture.read () Encode_param=[int (Cv2. imwrite_jpeg_quality),90]while ret:    result, imgencode =  Cv2.imencode ('. jpg ',  frame, encode_param)     data = numpy.array ( Imgencode)     stringdata = data.tostring ()     sock.send (  str (Len (StringData)). Ljust (+))     sock.send ( stringData );     ret, frame = capture.read ()      #decimg =cv2.imdecode (data,1)      #cv2. Imshow (' CLIENT ', decimg)     if cv2.waitkey ()  ==  27:        breaksock.close () Cv2.destroyalLwindows () 

The following problem occurs in the debugging process, the general IP is wrong, to change the ' 127.0.0.1 ' to the server-side IP,

Traceback (most recent):
File "client.py", line A, in <module>
Sock.connect ((TCP_IP, Tcp_port))
File "C:\Python27\lib\socket.py", line 228, in meth
Return GetAttr (Self._sock,name) (*args)
Socket.error: [Errno 10061]

If you can ipconfig view IP in the cmd of window;

If you can ifconfig view IP in Linux.

Raspberry Pi writes a few simple programs in Python 5: Send images with a socket