[已解决]行空板使用摄像头OpenCV错误
2024-03-166979
AI 快速预览详细
本文解决了行空板使用OpenCV进行视频捕获时遇到的摄像头错误问题。报错信息显示无法打开摄像头，通过调整cv2.VideoCapture的设备索引和缓冲区设置，成功解决了问题。文章详细介绍了具体的代码修改步骤，帮助用户快速恢复摄像头功能。
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报错段代码：cap = cv2.VideoCapture(0) def video_head(): u_gui.clear() cap = cv2.VideoCapture(0) cap.set(cv2.CAP_PROP_BUFFERSIZE,1) cap.open(0) while cap.isOpened(): ret,img = cap.read() if ret: h,w,c = img.shape w1 = h*240//320 x1 = (w-w1)//2 img = img[:,x1:x1+w1] img2 = cv2.resize(img, (240, 320)) if button_b.is_pressed(): cap.release() break 报错信息： [ WARN:0@145.288] global cap_v4l.cpp:982 open VIDEOIO(V4L2:/dev/video0): can't open camera by index[ERROR:0@145.292] global obsensor_uvc_stream_channel.cpp:156 getStreamChannelGroup Camera index out of range[ WARN:0@145.293] global cap_v4l.cpp:982 open VIDEOIO(V4L2:/dev/video0): can't open camera by index[ERROR:0@145.296] global obsensor_uvc_stream_channel.cpp:156 getStreamChannelGroup Camera index out of range |
