How To Install jpegjudge on Kali Linux

Introduction

In this tutorial we learn how to install jpegjudge on Kali Linux.

What is jpegjudge

jpegjudge is:

Try to determine which same picture was saved at a higher quality, even if the picture was saved at low quality and later at a higher quality.

By a statistical analysis over the quantization table stored in a jpeg one could probably deduce the quality which the picture was saved (i.e. this particular save), but it in no way says anything about the picture quality itself (i.e. whether it has ever been saved at lower quality before since its creation). For example, one might have saved a jpeg picture at low quality, and later saved at a higher quality, yet the information lost during the first save can’t be restored.

There are three methods to install jpegjudge on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install jpegjudge Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install jpegjudge using apt-get by running the following command:

sudo apt-get -y install jpegjudge

Install jpegjudge Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install jpegjudge using apt by running the following command:

sudo apt -y install jpegjudge

Install jpegjudge Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install jpegjudge using aptitude by running the following command:

sudo aptitude -y install jpegjudge

How To Uninstall jpegjudge on Kali Linux

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

sudo apt-get remove jpegjudge

Uninstall jpegjudge And Its Dependencies

To uninstall jpegjudge and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove jpegjudge

Remove jpegjudge Configurations and Data

To remove jpegjudge configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge jpegjudge

Remove jpegjudge configuration, data, and all of its dependencies

We can use the following command to remove jpegjudge configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge jpegjudge

Dependencies

jpegjudge have the following dependencies:

• libc6
• libjpeg62-turbo

References

• jpegjudge website

Summary

In this tutorial we learn how to install jpegjudge package on Kali Linux using different package management tools: apt, apt-get and aptitude.