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FLANN is a library for performing fast approximate nearest neighbor searches
in high dimensional spaces. It contains a collection of algorithms we found
to work best for nearest neighbor search and a system for automatically
choosing the best algorithm and optimum parameters depending on the dataset.
FLANN is written in C++ and contains bindings for the following languages:
C, MATLAB and Python. The Python bindings will need numpy, and the MATLAB
bindings will need MATLAB installed and with its binaries directory set into
the PATH. If you want to build the MATLAB bindings, set the environment
variable WITH_MATLAB to 1.