How To Install frei0r-plugins-opencv on CentOS 8

frei0r-plugins-opencv is Frei0r plugins using OpenCV

Introduction

In this tutorial we learn how to install frei0r-plugins-opencv on CentOS 8.

What is frei0r-plugins-opencv

Frei0r plugins that use the OpenCV computer vision framework.

We can use yum or dnf to install frei0r-plugins-opencv on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install frei0r-plugins-opencv.

Install frei0r-plugins-opencv on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install frei0r-plugins-opencv using dnf by running the following command:

sudo dnf -y install frei0r-plugins-opencv

Install frei0r-plugins-opencv on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install frei0r-plugins-opencv using yum by running the following command:

sudo yum -y install frei0r-plugins-opencv

How To Uninstall frei0r-plugins-opencv on CentOS 8

To uninstall only the frei0r-plugins-opencv package we can use the following command:

sudo dnf remove frei0r-plugins-opencv

frei0r-plugins-opencv Package Contents on CentOS 8

/usr/lib/.build-id
/usr/lib/.build-id/91/405e4ad06ff37d2dd2f4fa1d47c0e366161d8c
/usr/lib/.build-id/ba/8ad21cc5529a9e85c27d1f16386512aa450fc0
/usr/lib64/frei0r-1/facebl0r.so
/usr/lib64/frei0r-1/facedetect.so

References

Summary

In this tutorial we learn how to install frei0r-plugins-opencv on CentOS 8 using yum and dnf.