How To Install flann on CentOS 7

In this tutorial we learn how to install flann on CentOS 7. flann is Fast Library for Approximate Nearest Neighbors

Introduction

In this tutorial we learn how to install flann on CentOS 7.

What is flann

FLANN is a library for performing fast approximate nearest neighbor searches in high dimensional spaces. It contains a collection of algorithms found to work best for nearest neighbor search and a system for automatically choosing the best algorithm and optimum parameters depending on the data sets.

We can use yum or dnf to install flann on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install flann.

Install flann on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install flann using yum by running the following command:

sudo yum -y install flann

Install flann on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install flann using dnf by running the following command:

sudo dnf -y install flann

How To Uninstall flann on CentOS 7

To uninstall only the flann package we can use the following command:

sudo dnf remove flann

References

Summary

In this tutorial we learn how to install flann on CentOS 7 using yum and dnf.