问题描述:
(yolov5) Pi@raspberrypi:~/Desktop/yolov5/yolov5-master $ python detect.py --source 0 --weights yolov5n.pt
detect: weights=['yolov5n.pt'], source=0, data=data/coco128.yaml, imgsz=[640, 640], conf_thres=0.25, iou_thres=0.45, max_det=1000, device=, view_img=False, save_txt=False, save_format=0, save_csv=False, save_conf=False, save_crop=False, nosave=False, classes=None, agnostic_nms=False, augment=False, visualize=False, update=False, project=runs/detect, name=exp, exist_ok=False, line_thickness=3, hide_labels=False, hide_conf=False, half=False, dnn=False, vid_stride=1
YOLOv5 2025-1-13 Python-3.8.20 torch-2.4.1 CPU
Fusing layers...
YOLOv5n summary: 213 layers, 1867405 parameters, 0 gradients, 4.5 GFLOPs
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "/home/Pi/miniconda3/envs/yolov5/lib/python3.8/site-packages/cv2/qt/plugins" even though it was found.
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/Pi/miniconda3/envs/yolov5/lib/python3.8/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: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
已放弃
解决方案:
首先,可以先尝试安装pyside6和pyqt5库
pip install pyside6
pip install pyqt5
如果不行,继续执行下方的猛操作
1. 安装缺失的 Qt 插件
尝试安装缺失的 Qt 插件,尤其是 xcb
插件:
sudo apt-get install libxcb-xinerama0
2. 设置环境变量
尝试设置 QT_QPA_PLATFORM
环境变量为 offscreen
,这可能会解决没有显示输出设备时的错误:
export QT_QPA_PLATFORM=offscreen
你可以将这个命令添加到你的 .bashrc
或 .profile
文件中,确保每次启动时都自动设置。
3. 使用 cv2
的 Headless 模式
如果你不需要显示图形界面,可以尝试安装 opencv-python-headless
,它是一个不包含 GUI 模块的 OpenCV 版本:
pip install opencv-python-headless
4. 重新安装 OpenCV 和 Qt
如果上述方法无效,可以尝试重新安装 OpenCV 和 Qt:
pip uninstall opencv-python opencv-python-headless
pip install opencv-python
然后重启开发板,尝试应该可以了。
补充:
解决完上方的报错,估计会有新的报错,可以查看这篇文章:https://blog.51cto.com/wzqgzs/13104709