lepton
Huffman-Coding
| lepton | Huffman-Coding | |
|---|---|---|
| 5 | 3 | |
| 5,001 | 94 | |
| - | - | |
| 1.8 | 0.0 | |
| over 1 year ago | about 2 months ago | |
| C++ | C++ | |
| Apache License 2.0 | MIT License |
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lepton
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JPEG XL: How It Started, How It’s Going
JPEG XL can losslessy transcode JPEG into a smaller format. JPEG2000 (or WebP or anything but Lepton[0]) didn't offer that. Besides, we have gif and png for approximately the same space. gif still isn't gone. Displacement isn't necessary for a new format to become useful.
[0] https://github.com/dropbox/lepton
- Jpeg Compression with Dropbox's Lepton
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Too bad this isn’t digitized. Would totally hoard it!
We also use https://github.com/dropbox/lepton to save disk storage. It give 20% saving in our experience.
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Questions about establishing a photography backup/storage system
It may not be directly related to your question, but Dropbox has developed a great open source software called Lepton. It is able to compress JPEGs losslessly and saves on average about 22% of storage space. The files are not readable after compression without decompression, but since your focus seems to be on archiving anyway, it might be handy. And for larger collections of high-resolution images, it can actually save a decent amount of storage space.
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AVIF support enabled by default in Firefox 86
Just wondering, is there a "lossless" conversion from PNG/JPEG/etc to AVIF? Kinda like Lepton[1] but just re-compressing without further loss of details.
[1] https://github.com/dropbox/lepton
Huffman-Coding
- Self Made Zip - File archiver and archive extractor programs based on Huffman’s lossless compression algorithm
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Huffman decompression
Note: If you want you can check my old implementation of huffman coding based compressor and decompressor: https://github.com/e-hengirmen/Huffman-Coding
What are some alternatives?
brunsli - Practical JPEG Repacker
kanzi-cpp - Fast lossless data compression in C++
ImageMagick - 🧙♂️ ImageMagick 7
lib7zip - c++ library wrapper of 7zip
zpaqfranz - Deduplicating archiver with encryption and paranoid-level tests. Swiss army knife for the serious backup and disaster recovery manager. Ransomware neutralizer. Win/Linux/Unix
minlzma - The Minimal LZMA (minlzma) project aims to provide a minimalistic, cross-platform, highly commented, standards-compliant C library (minlzlib) for decompressing LZMA2-encapsulated compressed data in LZMA format within an XZ container, as can be generated with Python 3.6, 7-zip, and xzutils
kanzi - Fast lossless data compression in Java
Racjin-de-compression - Compression and decompression algorithms used in old PS2/PSP/Wii games by Racjin
PGM-index - 🏅State-of-the-art learned data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes
compressonator - Tool suite for Texture and 3D Model Compression, Optimization and Analysis using CPUs, GPUs and APUs
Lepton - 💻 Democratizing Snippet Management (macOS/Win/Linux)