Django + OpenCV : open webcam take pictures and save them
7,086 views
Skip to first unread message
Samara Muñoz
Aug 12, 2020, 5:06:46 PM8/12/20
to Django users
Hi, I am doing a project where I am trying to open a camera (webcam and/or IP cam), then I would like to have a bottom, and every time I click it the frames/images are saved.
I followed this tutorial by Sanket Sawardekar:
where in my Django project named video stream :
urls.py
urlpatterns = [
path('admin/', admin.site.urls),
path('',include('streamapp.urls'))
]
settings.py I added the 'streamapp'
---------------------------------------------------------------------------
Then in my Django application named streamapp :
urls.py
#display both cameras
path('', views.index, name='index'),
#access the laptop camera
path('video_feed', views.video_feed, name='video_feed'),
#access the phone camera
path('webcam_feed', views.webcam_feed, name='webcam_feed'),
views:
#Display the 2 videos
def index(request):
return render(request, 'streamapp/home.html')
#Every time you call the phone and laptop camera method gets frame
#More info found in camera.py
def gen(camera):
while True:
frame = camera.get_frame()
yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n\r\n')
#Method for laptop camera
def video_feed(request):
return StreamingHttpResponse(gen(VideoCamera()),
#video type
content_type='multipart/x-mixed-replace; boundary=frame')
#Method for phone camera
def webcam_feed(request):
return StreamingHttpResponse(gen(IPWebCam()),
#video type
content_type='multipart/x-mixed-replace; boundary=frame')
Finally a file was created camera.py where cv2 and urllib where imported:
from imutils.video import VideoStream
import imutils
import cv2
import os
import urllib.request
import numpy as np
from django.conf import settings
class VideoCamera(object):
def __init__(self):
self.video = cv2.VideoCapture(0)
def __del__(self):
self.video.release()
#This function is used in views
def get_frame(self):
success, image = self.video.read()
frame_flip = cv2.flip(image, 1)
ret, jpeg = cv2.imencode('.jpg', frame_flip)
return jpeg.tobytes()
class IPWebCam(object):
def __init__(self):
self.url = "http://192.168.1.178:8080/shot.jpg"
def __del__(self):
cv2.destroyAllWindows()
def get_frame(self):
imgResp = urllib.request.urlopen(self.url)
imgNp = np.array(bytearray(imgResp.read()), dtype=np.uint8)
img = cv2.imdecode(imgNp, -1)
img =cv2.resize(img, (640, 480))
frame_flip = cv2.flip(img, 1)
ret, jpeg = cv2.imencode('.jpg', frame_flip)
return jpeg.tobytes()
----------------------------------------------------------------------------------------------------------
for the html:
<!DOCTYPE html>
<html>
<head>
<title> Video Live Stream </title>
</head>
<body>
<h1> Video Live Stream </h1>
<!-- Creating 2 image tags -->
<img src = "{% url 'video_feed' %}">
<img src = "{% url 'webcam_feed' %}">
</body>
</html>
Thanks for your help
Reply all
Reply to author
Forward
0 new messages