pythonopencvvideo-processingface-recognitionwebcam-capture

The cv2.imshow not showing webcam video and not opening any window

I have an issue with showing up the window and cam capture using OpenCV

When i'm run the script, i see that the cam is working, but the window with this cam is not showing anywhere, i've had just the Python icon showed up but it`s even not clickable.

here

setup:

I`ve tried to:

import cv2
import sys
import logging as log
import datetime as dt
from time import sleep

faceCascade = cv2.CascadeClassifier('/Users/***/Documents/GitHub/FaceAuth/haarcascade_frontalface_default.xml')
log.basicConfig(filename='webcam.log', level=log.INFO)

video_capture = cv2.VideoCapture(0)  # 0 for phone cam, 1 for pc cam
anterior = 0

while True:
    if not video_capture.isOpened():
        print('Unable to load camera.')
        sleep(5)
        pass

    # Capture frame-by-frame
    ret, frame = video_capture.read()

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    faces = faceCascade.detectMultiScale(gray, 1.1, 4)

    # Draw a rectangle around the faces
    for (x, y, w, h) in faces:
        cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 2)

    if anterior != len(faces):
        anterior = len(faces)
        log.info("faces: " + str(len(faces)) + " at " + str(dt.datetime.now()))

    # Display the resulting frame
    cv2.imshow('Video', frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

    # Display the resulting frame
    cv2.imshow('Video', frame)

# When everything is done, release the capture
video_capture.release()
cv2.destroyAllWindows()

here This is my variables in debug breakpoint, before cv2.imshow('Video', frame)

Solution

  • From @idonthaveaname in the comments section:

    Have you tried upgrading opencv to 4.4.0? Maybe it should work, 4.4.0 is the latest version.