License Plate Detector

This license plate detector is a technology demonstration of how to use ONNX under Linux.

Training

I annotated license plate images (4000+ jpeg files) and trained my model using YOLOv8 YOLOv26. It is quite convenient to use Yolo26 since I don't have to run Non-Maximum Supression.

• Long plates

• Square(ish) plates

• Foreign plates

In order to load and use ONNX runtime under Linux:

1. Download ONNX Runtime from: https://www.nuget.org/api/v2/package/Microsoft.ML.OnnxRuntime

2. Extract it (it is basically a zip file) to a folder

3. Go to runtimes/linux-x64/native

4. Copy libonnxruntime.so to ./onnx/lib folder of your project

5. ln -s libonnxruntime.so libonnxruntime.so.1

6. Copy include files (recursively) to your project folder as well

   cp -r build/native/include/ ./onnx/

OpenCV2 folder name fix for Ubuntu 24.04

sudo ln -s /usr/include/opencv4/opencv2 /usr/include/opencv2