# WeChatQRCode

WeChatQRCode for detecting and parsing QR Code, contributed by [WeChat Computer Vision Team (WeChatCV)](https://github.com/WeChatCV). Visit [opencv/opencv_contrib/modules/wechat_qrcode](https://github.com/opencv/opencv_contrib/tree/master/modules/wechat_qrcode) for more details.

Notes:

- Model source: [opencv/opencv_3rdparty:wechat_qrcode_20210119](https://github.com/opencv/opencv_3rdparty/tree/wechat_qrcode_20210119)
- The APIs `cv::wechat_qrcode::WeChatQRCode` (C++) & `cv.wechat_qrcode_WeChatQRCode` (Python) are both designed to run on default backend (OpenCV) and target (CPU) only. Therefore, benchmark results of this model are only available on CPU devices, until the APIs are updated with setting backends and targets.

## Demo

Run the following command to try the demo:

```shell
# detect on camera input
python demo.py
# detect on an image
python demo.py --input /path/to/image

# get help regarding various parameters
python demo.py --help
```

### Example outputs

![webcam demo](./examples/wechat_qrcode_demo.gif)

## License

All files in this directory are licensed under [Apache 2.0 License](./LICENSE).

## Reference:

- https://github.com/opencv/opencv_contrib/tree/master/modules/wechat_qrcode
- https://github.com/opencv/opencv_3rdparty/tree/wechat_qrcode_20210119
