使用 Opencv 过程中突然 qt 报错，本文记录解决方案。
错误信息
1234 | qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/python3.11/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 (from /python3.11/site-packages/cv2/qt/plugins), xcb, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl. |
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解决方案
问题原理没有弄清楚其实，到现在我都不明白为啥报这个错误
方案一
参考：https://blog.csdn.net/HaoZiHuang/article/details/131262745
在环境变量中添加：
1 | export DISPLAY=:0 |
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可以防止代码报错，但是无法显示图片
方案二
参考：https://github.com/NVlabs/instant-ngp/discussions/300
卸载 opencv-python 改安装 opencv-python-headless
12 | pip uninstall opencv-pythonpip install opencv-python-headless |
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解决了我的问题
参考资料
- https://blog.csdn.net/HaoZiHuang/article/details/131262745
- https://github.com/PaddlePaddle/PaddleOCR/issues/6798
- https://github.com/NVlabs/instant-ngp/discussions/300
文章链接： https://cloud.tencent.com/developer/article/2420073
