#VSCode – 20 lines to display a webcam camera feed with #Python using #OpenCV

Hi !

I always write this from scratch, so it seems that I’ll drop this one here. So next time I search for this, I’ll find myself.

import os
import cv2
import time
# init camera
execution_path = os.getcwd()
camera = cv2.VideoCapture(0)
while True:
# Init and FPS process
start_time = time.time()
# Grab a single frame of video
ret, frame = camera.read()
# calculate FPS >> FPS = 1 / time to process loop
fpsInfo = "FPS: " + str(1.0 / (time.time() start_time))
cv2.putText(frame, fpsInfo, (10, 10), cv2.FONT_HERSHEY_SIMPLEX, 0.4, (255, 255, 255), 1)
# Display the resulting image
cv2.imshow('Video', frame)
# Hit 'q' on the keyboard to quit!
if cv2.waitKey(1) & 0xFF == ord('q'):
# Release handle to the webcam

And with some extra lines, we can even detect faces and display some face landmarks:

This is the base of some many image recognition scenarios, so I hope this will save me some local search time πŸ˜€

Happy coding!

Greetings @ Toronto

El Bruno


My posts on Face Recognition using Python

  1. Detecting Faces with 20 lines in Python
  2. Face Recognition with 20 lines in Python
  3. Detecting Facial Features with 20 lines in Python
  4. Facial Features and Face Recognition with 20 lines in Python
  5. Performance improvements with code
  6. More performance improvements, lowering the camera resolution

And some general Python posts



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