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tedmiston/webcam-cv2.py

Last active May 4, 2023 11:56
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Display the webcam in Python using OpenCV (cv2)
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webcam-cv2.py
"""
Simply display the contents of the webcam with optional mirroring using OpenCV
via the new Pythonic cv2 interface. Press <esc> to quit.
"""
import cv2
def show_webcam(mirror=False):
cam = cv2.VideoCapture(0)
while True:
ret_val, img = cam.read()
if mirror:
img = cv2.flip(img, 1)
cv2.imshow('my webcam', img)
if cv2.waitKey(1) == 27:
break # esc to quit
cv2.destroyAllWindows()
def main():
show_webcam(mirror=True)
if __name__ == '__main__':
main()
@zBugi
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zBugi commented Jun 29, 2021 •
edited
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explain this man!!!

I know it's kinda late but:

"""
Simply display the contents of the webcam with optional mirroring using OpenCV 
via the new Pythonic cv2 interface.  Press <esc> to quit. 
"""

import cv2


def show_webcam(mirror=False):
    int n = 0 
# use the device /dev/video{n} in this case /dev/video0 
# On windows use the first connected camera in the device tree
    cam = cv2.VideoCapture(n)
    while True:
# read what the camera the images which are comming from the camera
# ret_val idk atm
        ret_val, img = cam.read()
# if mirror is true do flip the image 
        if mirror: 
            img = cv2.flip(img, 1)
# show the image with the title my webcam in a window
        cv2.imshow('my webcam', img)
# if you press ESC break out of the while loop and destroy all windows == free resources <3
        if cv2.waitKey(1) == 27: 
            break  # esc to quit
    cv2.destroyAllWindows()


def main():
    show_webcam(mirror=True)


if __name__ == '__main__':
    main()

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