Question

I use cv.CaptureFromCAM in a Django app, but my script block a this command.
Without Django, it works and I can see my webcam turns on.

Here’s my script :

import cv, Image

def takePhoto():
        """Return a PIL img"""
        print "Taking photo"
        cv_img = cv.QueryFrame( cv.CaptureFromCAM(0) )
        pil_img = Image.fromstring("L", cv.GetSize(cv_img), cv_img.tostring())
        return pil_img

If someone know why I can’t use a method like cv.CaptureFromCAM in Django’s scripts ?

PS : I already tried to decompose in several lines…

Answer 1

Resolved :
I put cv.CaptureFromCAM in a var settings.py for launch it at website start up.

I access to that var for take a photo, example :

In settings.py:

CAM = cv.CaptureFromCAM(0)

In views.py:

from django.http import HttpResponse
import cv, Image

def instantPhoto(request) :
    cv_img = cv.QueryFrame( CAM[0] )
    pil_img = Image.fromstring("RGB", cv.GetSize(cv_img), cv_img.tostring())
    response = HttpResponse(mimetype="image/png")
    pil_img.save(response, "PNG")
    return response