How To Install liblqr-1-0-dev on Ubuntu 18.04
Introduction
In this tutorial we learn how to install liblqr-1-0-dev on Ubuntu 18.04.
What is liblqr-1-0-dev
liblqr-1-0-dev is:
The LiquidRescale (lqr) library provides a C/C++ API for performing non-uniform resizing of images by the seam-carving technique.
The library takes images in plain array format as input and converts them to a multi-size representation.
Following is a list of features:
- Areas in the image can be marked for preservation or discard
- Once the image has been fully processed, the scaling can be done in real-time. In fact, the information can be saved and read out later without any further processing
- The resizing is done with a single function which automatically performs all the necessary operations; it can also work in successive steps without wasting computational time
- Possibility to tune the carving operation by letting the seams be less connected, or more rigid, or both
- Can export and import the visibility map (the seams)
- Other images can be attached and undergo the same carving process as the parent image
- The automatic feature detection algorithm can be tuned by selecting among different energy gradient functions
- Reports progress through a customizable interface
- A signalling system permits one to cleanly handle errors
The library implements the algorithm described in the paper “Seam Carving for Content-Aware Image Resizing” by Shai Avidan and Ariel Shamir, which can be found at http://www.faculty.idc.ac.il/arik/imret.pdf
This package contains the development files.
There are three methods to install liblqr-1-0-dev on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install liblqr-1-0-dev Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install liblqr-1-0-dev using apt-get by running the following command:
sudo apt-get -y install liblqr-1-0-dev
Install liblqr-1-0-dev Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install liblqr-1-0-dev using apt by running the following command:
sudo apt -y install liblqr-1-0-dev
Install liblqr-1-0-dev 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 liblqr-1-0-dev using aptitude by running the following command:
sudo aptitude -y install liblqr-1-0-dev
How To Uninstall liblqr-1-0-dev on Ubuntu 18.04
To uninstall only the liblqr-1-0-dev package we can use the following command:
sudo apt-get remove liblqr-1-0-dev
Uninstall liblqr-1-0-dev And Its Dependencies
To uninstall liblqr-1-0-dev and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove liblqr-1-0-dev
Remove liblqr-1-0-dev Configurations and Data
To remove liblqr-1-0-dev configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge liblqr-1-0-dev
Remove liblqr-1-0-dev configuration, data, and all of its dependencies
We can use the following command to remove liblqr-1-0-dev configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge liblqr-1-0-dev
References
Summary
In this tutorial we learn how to install liblqr-1-0-dev package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
