https://linuxize.com/post/how-to-install-opencv-on-ubuntu-20-04/
Opencv4.5.1 微信二维码识别功能 QRCode 编译与使用 C++_zaibeijixing的专栏-程序员宅基地 - 程序员宅基地
how to impile opencv
https://gist.github.com/tzutalin/f07f5633fd599001101006561689062b
Compiling and Using OpenCV on Android from C++ (Without OpenCVManager) | sisik
https://medium.com/analytics-vidhya/how-to-install-opencv-for-visual-studio-code-using-ubuntu-os-9398b2f32d53
/usr/local/include/opencv4/opencv2/opencv_modules.hpp
// This definition means that OpenCV is built with enabled non-free code.
// For example, patented algorithms for non-profit/non-commercial use only.
#define HAVE_OPENCV_WECHAT_QRCODE
[Camera]Android:Camera2/HAL3 framework Analysis This article was reproduced from the sheldon_blogs blog at https://www.cnblogs.com/blogs-of-lxl/p/10651611.html This article is for study and research purposes only. Please attach the original author's name and web address if you want to reproduce it 1. Treble mechanism on Android O In AndroidUTF-8...https://programmer.ink/think/camera-android-camera2-hal3-framework-analysis.html
