Re: Streaming images with HttpResponse?

I Alex.

I believe that is not possible with Django views. Views are made for request-response, i.e. the client sends a request, the view returns a response, and that's it, end of connection.

In your case, the server has a stream of data that you want to constantly send to the client. This sounds like a standard problem for using Websockets.

Within Django, there are some apps for using Websockets, even though I don't know how websockets work well for video.

Hope this helps,

Jorge

On Fri, Nov 15, 2013 at 5:15 PM, Alex Karargyris <akarargyris@gmail.com> wrote:

I have this simple app that I opens webcam and processes the frames using OpenCV. In my views.py I have the following code:

    def processImage():

    

    while True:

        

        rval, frame = settings.CAP.read()  //Read frames from webcam

        gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)         //Make frame grayscale

        pil_img = Image.fromarray(gray)  

        

        response = HttpResponse(mimetype="image/png")

        pil_img.save(response, "PNG")

        

        return response

Although there is a while loop the function runs only once because it is broken by "return response". How could I change the code to make it run constantly?

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