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#zlib

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Hugo van Kemenade

Pillow 11.1.0 is out!

One of the cool updates is we're using zlib-ng 2.2.2 instead of zlib 1.2.8/1.3.1, which is more than twice as fast at saving PNGs at higher compression levels.

In more detail, zlib-ng has the same file sizes for compression level 0 and bigger files for level 1, but if you care about size, any higher level gives more or less the same file size, and zlib-ng is much faster.

github.com/python-pillow/Pillo

fosstodon.org/@pillow/11375779

Graph of compression time. For one test image, zlib-ng is much better than zlib. For another test image, zlib-ng is noticeably better than zlib.
Graph of compressed file sizes. At compression level 0: it's the same for all. At compression level 1: zlib-ng is much worse than zlib. At compression level 2-3: zlib-ng is slightly better than zlib. At compression level 4-6: zlib-ng is even more slightly worse than zlib. At compression level 7-9: about the same, zlib-ng ever so slightly better than zlib.
#Pillow#Python#release
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Public
Tombe la pluie - Theespookje

Je me suis même fait gronder et moquée en mode "mais t'as fait comment toi ? Laisse les se démerder !" quand j'ai parlé de scanner certains de mes livres qui sont plus édités et le seront plus, sont en vente d'occasion pour genre 100 ou 200e partout sans pdf ni rien pour les mettre sur #zlib ou #theinternetarchive #theinternetlibrary ou de trouver un moyen de répertorier des articles de recherche dispo gratos parce que je suis pour la gratuité ou l'accès libre au savoir...

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Hella De Boo Bird-Artist

A recent study highlighting the positive impact the #Zlib platform has on #students overcoming #academicpoverty. The research found that access to the vast collection of #freeebooks and articles has significantly helped students improve their academic performance and excel in their studies.The study serves as a confirmation of the importance of open access to information and the role it plays in breaking down barriers to #education.

open-publishing.org/journals/i

open-publishing.orgDigital Piracy in Higher Education: Exploring Social Media Users and Chinese Postgraduate Students Motivations for Supporting ‘Academic Cybercrime’ by Shelving eBooks from Z-Library | Journal of University Teaching and Learning Practice
Public
Andreas Grois

Today I had a quick look at compression speed of the various compression algorithms in #UnrealEngine.

In my use case, speed is more important than compression ratio, so I had COMPRESS_BiasSpeed set.

To little surprise, #gzip and #zlib took about the same time, and #lz4 was a lot slower.

The big surprise was #Oodle, which was faster than all others. By a lot.

So, if you are compressing data in your Unreal game at runtime, you might want to check if Oodle is an option for you.

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