Building Computer Vision Projects with OpenCV 4 and C++

How to check when an algorithm was added to OpenCV

One of the simplest things to do in order to learn more about an OpenCV algorithm is to see when it was added to the source tree. Luckily, OpenCV as an open source project has retained most of its code's history, and changes were logged in various released versions. There are several useful resources to access this information, as follows:

• The OpenCV source repository: https://github.com/opencv/opencv
• The OpenCV change logs: https://github.com/opencv/opencv/wiki/ChangeLog
• The OpenCV attic: https://github.com/opencv/opencv_attic
• The OpenCV documentation: https://docs.opencv.org/master/index.html

Let's examine, for example, the algorithm in the cv::solvePnP(...) function, which is one of ...