Install OpenCV dependency
sudo apt-get install libopencv-dev libopencv-contrib-dev libarpack++2-dev libarpack2-dev libsuperlu-devThen install the pytlbd Python package from Iago Suárez
git clone --recursive https://github.com/iago-suarez/pytlbd.git ./src/third-party/pytlbd
python -m pip install -e ./src/third-party/pytlbdThe LBD is listed as a dependency with separate installation to avoid the OpenCV dependency. When using the LBD matcher inside LIMAP, please use the parallelization with --line2d.matcher.n_jobs 8 (8 cores, you can use even more CPU cores if applicable).