fpnge
qoi
fpnge | qoi | |
---|---|---|
4 | 25 | |
79 | 6,756 | |
- | - | |
4.2 | 6.3 | |
2 months ago | about 2 months ago | |
C++ | C | |
Apache License 2.0 | MIT License |
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fpnge
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png crate gets an ultrafast compression mode, up to 4x faster decompression
When the QOI format was first announced it wasn't clear that was even possible while keeping PNG format compatibility. But the fpng and fpnge C/C++ libraries showed it was, and today you can take advantage of those advances in a general purpose PNG library in Rust!
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Hello, PNG
But most platforms these days have some form of CRC32 "acceleration". Adler32 is easy to compute so I'm even less concerned there.
I spent a bunch of time optimising the code in [fpnge](https://github.com/veluca93/fpnge), which is [often notably faster than fpng](https://github.com/nigeltao/qoir/blob/5671f584dcf84ddb71e28d...), yet checksum time is basically negligible.
Having said that, the double-checksum aspect of PNG does feel unnecessary.
- Computing Adler32 Checksums at 41 GB/s
- QOI – The Quite OK Image Format
qoi
- CPNG, a backwards compatible fork of PNG
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Ethically Sourced Lena Picture
Her request is politely-phrased and reasonable. I don't think there's a legal or ethical issue, but respecting the wishes of others when it costs nothing is just kindness.
However, the way that some have seized on it, and then interacted with others in their communities is ... neither polite nor reasonable.
e.g. https://github.com/phoboslab/qoi/issues/35
- PSA: Use ZopfliPNG to compress your PNG assets
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The most famous picture used as a standard in computer science is nudes from Playboy!
How do you know it's not a problem for the people who work with computer vision? Let's take this for example - sure, the request itself was presented very unprofessionally, but this is still an example of someone in a computer vision-adjacent field stating in no uncertain terms that they have a problem with the image.
- What’s the best lossless image format?
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At one company I worked at only one thing mattered: the yearly bonus
Yes. Without a supporting statement, it's ad hominem. But I provided a supporting statement.
This is the issue I'm taking about: https://mobile.twitter.com/richgel999/status/146443578680850...
Which links to here: https://github.com/phoboslab/qoi/issues/35
Where everyone agrees, yes, the image should be removed. They didn't know about its history. Would he please stop being a gigantic asshole about it.
So if that's not blowing things out of proportion, I don't know what is.
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QOI – The Quite OK Image Format
I don't know about CUDA, however I've made an AVX2 based encoder a few months ago : https://github.com/phoboslab/qoi/pull/143
I intend to create an AVX2 based decoder but I had absolutely no time to work on side projects in the past three months.
You might also want to take a look at this streaming encoder if you want to encode large files with a tiny memory footprint : https://github.com/MKCG/php-qoi/blob/main/src/FFI/lib/qoi.c
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This is huge: GameMaker Studio 2 now uses QOI image format for textures!
Not only does compression improve this situation today, but using QOI means improvements may continue to come over time. QOI is a very new, open source image format, and that's already proving to be an advantage. By itself, QOI compression is pretty weak, but YoYoGames have forked it and worked in BZ2 compression to surpass the old PNG format. As QOI itself improves and as YoYoGames continues to work on it, it's almost guaranteed that we'll see the compression ratio in GameMaker get better over time.
- QOI – The “Quite OK Image Format” for fast, lossless image compression
What are some alternatives?
fpng - Super fast C++ .PNG writer/reader
PNG-spec - Maintenance of the PNG specification
zpaqlpy - Compiles a zpaqlpy source file (a Python-subset) to a ZPAQ configuration file for usage with zpaqd
libjxl - JPEG XL image format reference implementation
php-qoi - QOI image encoder and decoder written in pure PHP
Zpng - Better lossless compression than PNG with a simpler algorithm
canvas_ity - A tiny, single-header <canvas>-like 2D rasterizer for C++
tinf - Tiny inflate library (inflate, gzip, zlib)
qoi2-bikeshed - "Quite OK Image" version 2 discussions
figlet-fonts - my collection of figlet / toilet ascii art fonts
qoi - A rust implementation of the “Quite OK Image” format for fast, lossless image compression