How To Install pngnq on Fedora 34

pngnq is Pngnq is a tool for quantizing PNG images in RGBA format

Introduction

In this tutorial we learn how to install pngnq on Fedora 34.

What is pngnq

Pngnq is a tool for quantizing PNG images in RGBA format. The neuquant algorithm uses a neural network to optimise the color map selection. This is fast and quite accurate, giving good results on many types of images.

We can use yum or dnf to install pngnq on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install pngnq.

Install pngnq on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install pngnq using dnf by running the following command:

sudo dnf -y install pngnq

Install pngnq on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install pngnq using yum by running the following command:

sudo yum -y install pngnq

How To Uninstall pngnq on Fedora 34

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

sudo dnf remove pngnq

pngnq Package Contents on Fedora 34

/usr/bin/pngcomp
/usr/bin/pngnq
/usr/lib/.build-id
/usr/lib/.build-id/4b
/usr/lib/.build-id/4b/25767c5e3139dc2d44556b66d1e0dc78e10540
/usr/lib/.build-id/c1
/usr/lib/.build-id/c1/f7cabe40d14af9ff19559534cbca2f8dff8321
/usr/share/doc/pngnq
/usr/share/doc/pngnq/COPYING
/usr/share/doc/pngnq/README
/usr/share/man/man1/pngnq.1.gz

References

Summary

In this tutorial we learn how to install pngnq on Fedora 34 using yum and dnf.