How to Install and Uninstall pngnq Package on Ubuntu 21.10 (Impish Indri)

Last updated: December 27,2024

1. Install "pngnq" package

Please follow the step by step instructions below to install pngnq on Ubuntu 21.10 (Impish Indri)


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

Here is a brief guide to show you how to uninstall pngnq on Ubuntu 21.10 (Impish Indri):


    
        
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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 21.10 (Impish Indri)

Package: pngnq
Architecture: amd64
Version: 1.0-2.3
Priority: optional
Section: universe/graphics
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Nelson A. de Oliveira
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 76
Depends: libc6 (>= 2.11), libpng16-16 (>= 1.6.2-1), zlib1g (>= 1:1.1.4)
Filename: pool/universe/p/pngnq/pngnq_1.0-2.3_amd64.deb
Size: 24750
MD5sum: b7b5df2b89689edd3d233f6bc01992d4
SHA1: 877db5b72335d8b94b038a28c011b7cde8201c82
SHA256: dbb9127ec3796a67d2f0cdff6c065f5ff3ded9274769fb67fb222e2ed2d2672d
SHA512: 77255bf0fd8b83374f6662b37c0605725a6b142b25115cdd25d6dc8adaec6dba3e5ad06e1783f950a8ae3227b0b3813b131ee4401f7caa6ecde9a9800736f6ef
Homepage: http://pngnq.sourceforge.net
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