When I use OpenCV 4.1.0, I found some modules (algorithms) has been removed, such as LSD line detector, due original code license conflict. I re-compile and re-build OpenCV 4.1.0 with those modules, and the repository is just for the backup online. The libary contains the LSD line detector, edline line detector, sift and surf. If you use it, please ensure just for private study and research, like me. We should follow those licenses.
由于许可证冲突，OpenCV 4.1.0版本删除了某些算法库，如LSD直线检测。我重新编译了OpenCV 4.1.0库，加回了这些模块：LSD直线检测、edline直线检测、sift、surf算子。此仓库是我重新编译出的OpenCV 4.1.0库的一个备份。如果您使用它，确保仅以个人学习研究目的使用，遵守协议。