How to Install and Uninstall pngnq Package on Ubuntu 16.04 LTS (Xenial Xerus)

Last updated: May 14,2024

1. Install "pngnq" package

This guide let you learn how to install pngnq on Ubuntu 16.04 LTS (Xenial Xerus)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                pngnq
            
                    
    
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2. Uninstall "pngnq" package

In this section, we are going to explain the necessary steps to uninstall pngnq on Ubuntu 16.04 LTS (Xenial Xerus):


    
        
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                sudo apt remove
            
                        
                pngnq
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the pngnq package on Ubuntu 16.04 LTS (Xenial Xerus)

Package: pngnq
Priority: optional
Section: universe/graphics
Installed-Size: 77
Maintainer: Ubuntu Developers
Original-Maintainer: Nelson A. de Oliveira
Architecture: amd64
Version: 1.0-2.2
Depends: libc6 (>= 2.11), libpng12-0 (>= 1.2.13-4), zlib1g (>= 1:1.1.4)
Filename: pool/universe/p/pngnq/pngnq_1.0-2.2_amd64.deb
Size: 24410
MD5sum: a52bdfb5a5095e55f45be72bb1ba1d5c
SHA1: f5bb413d2b78cb162d79c4bf9ab3489497b11638
SHA256: c955b1e3d43db8cd12868793095e45a3222f5c0d17da688379d4a9c7a35446ca
Description-en: tool for optimizing PNG (Portable Network Graphics) images
Pngnq is a tool for quantizing 32-bit RGBA PNG images to 8-bit RGBA pallete
PNG. It's is an adaptation by Stuart Coyle of Greg Roelf's pnqquant. While
pngquant uses a median cut algorithm, Pngnq uses Anthony Dekker's neuquant
algorithm (http://members.ozemail.com.au/~dekker/NEUQUANT.HTML), generally
resulting in better looking results than pngquant.
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Optimizers (like pngcrush and optipng) optimize the compression, usually
losslessly. pngnq quantizes colors down to 256 (or fewer) distinct RGBA
combinations, which is quite lossy. Optimized PNGs are usually two to four
times smaller than the 32-bit versions.
Description-md5: 8dc4366236a6a8b60a7651dc12063d65
Homepage: http://pngnq.sourceforge.net
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu