1. git clone https://github.com/tranmanhdat/FaceDetection
2. cd FaceDetection
3. cd app/src/main/cpp/tf-lite-api
4. git submodule update --init --recursive
5. download Opencv from (OpenCV release)[https://opencv.org/releases/] version 4.5.3 for Android, then extract downloaded file
6. change the environment opencvsdk in file gradle.properties to the folder contain Opencv downloaded in step 5
7. change compileSdkVersion and targetSdkVersion in build.gradle in Module opencv to 33
8. build and run app