How To Install libopencv-features2d4.2 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libopencv-features2d4.2
on Ubuntu 20.04.
What is libopencv-features2d4.2
libopencv-features2d4.2 is:
This package contains the OpenCV (Open Computer Vision) Feature Detection and Descriptor Extraction runtime libraries.
The Open Computer Vision Library is a collection of algorithms and sample code for various computer vision problems. The library is compatible with IPL (Intel’s Image Processing Library) and, if available, can use IPP (Intel’s Integrated Performance Primitives) for better performance.
OpenCV provides low level portable data types and operators, and a set of high level functionalities for video acquisition, image processing and analysis, structural analysis, motion analysis and object tracking, object recognition, camera calibration and 3D reconstruction. Task: ubuntustudio-video
There are three methods to install libopencv-features2d4.2
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install libopencv-features2d4.2 Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install libopencv-features2d4.2
using apt-get
by running the following command:
sudo apt-get -y install libopencv-features2d4.2
Install libopencv-features2d4.2 Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install libopencv-features2d4.2
using apt
by running the following command:
sudo apt -y install libopencv-features2d4.2
Install libopencv-features2d4.2 Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install libopencv-features2d4.2
using aptitude
by running the following command:
sudo aptitude -y install libopencv-features2d4.2
How To Uninstall libopencv-features2d4.2 on Ubuntu 20.04
To uninstall only the libopencv-features2d4.2
package we can use the following command:
sudo apt-get remove libopencv-features2d4.2
Uninstall libopencv-features2d4.2 And Its Dependencies
To uninstall libopencv-features2d4.2
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libopencv-features2d4.2
Remove libopencv-features2d4.2 Configurations and Data
To remove libopencv-features2d4.2
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libopencv-features2d4.2
Remove libopencv-features2d4.2 configuration, data, and all of its dependencies
We can use the following command to remove libopencv-features2d4.2
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libopencv-features2d4.2
References
Summary
In this tutorial we learn how to install libopencv-features2d4.2
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.