title: How do I input OBS virtual cam in my python code using opencv?
body: <p>I am trying to write a code for detecting the color green from a live video. I want to make a detector so that whenever the color green pops up in the screen, a counter starts counting how many times the color appears.</p>
  <p>So for the video source, I am using the OBS Virtual Camera. But I have no idea how to input it as the source. I have seen codes inputting web cams as the source as shown below:</p>
  <pre><code>import numpy as np 
  import cv2 
    
    
  # Capturing video through webcam 
  webcam = cv2.VideoCapture(0) 
  </code></pre>
  <p>Anyone have any idea how I can input the OBS virtual cam? Or does anyone know any alternative like switching to another language to do said task?</p>