英文:
Pyhton OpenCv not opening webcam on pycharm windows
问题
我已经尝试了每一个解决方案... 它就是不起作用。
import cv2
import numpy as np
cap = cv2.VideoCapture(0)
cv2.namedWindow("窗口")
while True:
ret, frame = cap.read()
cv2.imshow("窗口", frame)
# 这会在按下 'q' 键时退出
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
即使在终端上运行代码也没有问题，我找不到任何错误。文件正常运行，但摄像头不会打开。摄像头已更新，是我的笔记本内置摄像头。我尝试了cv2.VideoCapture(-1)也不起作用。
主要问题是它不会打开摄像头窗口。除此之外一切都看起来正常。
使用Python-3.11.0
Pycharm 2022 版本
Windows 10
我已安装了OpenCV
我已安装了Mediapipe
我已安装了CVzone
什么都没用。
英文:
I have tried every single solution... It's just not working.
import cv2
import numpy as np
cap = cv2.VideoCapture(0)
cv2.namedWindow("Window")
while True:
ret, frame = video_capture.read()
cv2.imshow("Window", frame)
#This breaks on 'q' key
if cv2.waitKey(1) & 0xFF == ord('q'):
break
video_capture.release()
cv2.destroyAllWindows()
The code runs fine even on terminal i couldn't find anything wrong. The file is running perfectly but the webcam is not opening. The webcam is upadted and internal webcam of my laptop. I tried cv2.videoCapture(-1) that's also not working.
The main problem is it's not opening the webcam window. Otherwise everything seems fine.
Using Python-3.11.0
Pycharm 2022 version
windows 10
I have installed openCV
I have installed mediapipe
I have installed CVzone
nothing is doing.
答案1
得分: 1
video_capture 未定义，但您已经定义了 cap = cv2.VideoCapture(0)。
您可以将以下代码添加到您的程序中以解决此问题：
video_capture = cv2.VideoCapture(0)
ret, frame = video_capture.read()
英文:
You are calling
ret, frame = video_capture.read()
but video_capture has not been defined. You did define
cap = cv2.VideoCapture(0)
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