move streaming to new folder + other method

camera/video_client_pi_cv2.py → camera/video_stream/video_client_pi_cv2.py

 # Connect a client socket to my_server:8000 (change my_server to the
 # hostname of your server)
 client_socket = socket.socket()
-client_socket.connect(('my_server', 8000))
+client_socket.connect(('192.168.1.107', 8000))
 
 # Make a file-like object out of the connection
 connection = client_socket.makefile('wb')
     while True:
         ret, frame = cap.read()
 
-        if frame == None:
+        if frame is None:
             break
-        
-        image = cv2.imencode('.jpg', frame)
+        print(type(frame))
+        gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+        print(type(gray))
+        _, image = cv2.imencode('.jpg', gray)
+        print(type(image))
         stream = image.tobytes()
+        print(type(stream))
 
         # Write the length of the capture to the stream and flush to
         # ensure it actually gets sent

camera/video_stream/zmq_video_client.py

+# run this program on each RPi to send a labelled image stream
+import socket
+import time
+from imutils.video import VideoStream
+import imagezmq
+
+sender = imagezmq.ImageSender(connect_to='tcp://jeff-macbook:5555')
+
+rpi_name = socket.gethostname() # send RPi hostname with each image
+picam = VideoStream(usePiCamera=True).start()
+time.sleep(2.0)  # allow camera sensor to warm up
+while True:  # send images as stream until Ctrl-C
+    image = picam.read()
+    sender.send_image(rpi_name, image)

camera/video_stream/zmq_video_server.py

+import cv2
+import imagezmq
+
+image_hub = imagezmq.ImageHub()
+
+while True:  # show streamed images until Ctrl-C
+    rpi_name, image = image_hub.recv_image()
+    cv2.imshow(rpi_name, image) # 1 window for each RPi
+    cv2.waitKey(1)
+    image_hub.send_reply(b'OK')