0. 前言
错误记录
报错如下：
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/w/anaconda3/lib/python3.9/site-packages/cv2/qt/plugins" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: xcb, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl.
简单来说就是opencv里面的qt有问题，
网上的大部分思路都是降低opencv的版本
如
从 4.5 下降为 4.3.0.36
还有就是安装
sudo apt install –reinstall libxcb-xinerama0
需要在.bashrc添加两条语句，然后运行你程序的时候，就会输出更加详细的错误。具体不展开了，因为本文试了没用，不适合笔者问题。
主要问题还是opencv的问题，可以通过卸载重装即可，如下：
pip uninstall opencv-python
pip install opencv-python-headless
Original: https://blog.csdn.net/weixin_39190382/article/details/126518682
Author: 胡侃有料
Title: qt.qpa.plugin: Could not load the Qt platform plugin “xcb“ in “/home/w/anaconda3/lib/python3.9/site-
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