# YOLOX-YOLOV5-YOLOV8-YOLOV9-OpenVINO in C++
This tutorial includes a C++ inference of YOLOX/YOLOV5/YOLOV8/YOLOV9 for OpenVINO.
## Install OpenVINO Toolkit
Please visit [Openvino Homepage](https://docs.openvinotoolkit.org/latest/get_started_guides.html) for more details.
## Environment
OpenVINO_2022.3.0
OpenCV-4.6.0
## Convert model
1. Export ONNX model
2. Convert ONNX to OpenVINO
Install requirements for convert tool
```shell
pip install openvino-dev
```
Convert ONNX into the OpenVINO IR
FP32
```shell
mo -m <onnx_model_path> --output_dir <MODEL_DIR>
```
FP16
```shell
mo -m <onnx_model_path> --output_dir <MODEL_DIR> --compress_to_fp16
```
INT8 Quantization with POT
```shell
pot -q default -m <ir_model_xml> -w <ir_model_bin> --engine simplified --data-source <data_dir> --output-dir <output_dir_name> --direct-dump --name <int8_model_name>
```
visit [Openvino POT](https://docs.openvino.ai/latest/notebooks/114-quantization-simplified-mode-with-output.html) for more details.
## Build
### Linux
```shell
mkdir build
cd build
cmake ..
make
```
## Demo
### c++
```shell
./detect <...><...>
```
## scrennshot
![](./yolov9/result/image.jpg)
基于C++OpenVINO部署YOLOX-YOLOV5-YOLOV8-YOLOV9源码.zip
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