Search Results for "huffman"
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Showing 29 open source projects for "huffman"
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Brotli
Brotli compression format
...After the overflow happens, memcpy is invoked with a gigantic num value, that will likely cause the crash. Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression. The specification of the Brotli Compressed Data Format is defined in RFC 7932. Brotli is open-sourced under the MIT License. ... -
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web.py
Web framework for python that is as simple as it is powerful
web.py is a web framework for Python that is as simple as it is powerful. web.py is in the public domain, you can use it for whatever purpose with absolutely no restrictions. web.py was originally published while Aaron Swartz worked at reddit.com, where the site used it as it grew to become one of the top 1000 sites according to Alexa and served millions of daily page views. “It’s the anti-framework framework. web.py doesn’t get in your way,” explained founder Steve Huffman. (The site was rewritten using other tools after being acquired by Condé Nast.) The latest stable release 0.62 only supports Python >= 3.5. If you are still using Python 2.7, then please use web.py version 0.51 which is intended to be our last release that supports Python 2. -
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Wuffs
Wrangling Untrusted File Formats Safely
...The design prioritizes predictable performance: decoders avoid dynamic allocation by default, return explicit “short read” signals, and run well in streaming or sandbox-free environments. The project ships battle-tested, CPU-friendly implementations for common image/container formats and bit-twiddly primitives like Huffman and checksum routines. Its standard library emphasizes portability and constant-time behavior where appropriate, which is valuable in security-sensitive contexts. Because the language is purpose-built, the resulting C output is small, auditable, and easy to embed in larger systems. -
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ZAPH
Tools and Z80 engine for creating adventure games. (RUST)
This is an exercise in some advance programming topics using a text adventure as the central result. This originally began as a project to recreate an old BASIC text adventure, on the ZX Spectrum, using Z80. After developing a very simple byte code VM to handle the game interactions, I realised that there was an opportunity to use some more advance techniques, which in turn can lead to some PC based tools. -
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libjpeg-turbo
SIMD-accelerated libjpeg-compatible JPEG codec library
...On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs. libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface. -
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Major looseless compression algorithms library and documentation. First project: Arithmetic, Huffman, LZ77, LZ78, LZW, RLE. Second project reimplements Deflate. Documentation explains major Entropy Compression Methods.
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Bzip2 for Windows
A block-sorting file compressor, v1.0.6 for Win-32
Bzip2 compresses files using the Burrows-Wheeler block sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by more conventional LZ77/LZ78-based compressors, and approaches the performance of the PPM family of statistical compressors. by Julian Seward. -
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ngx_brotli
NGINX module for Brotli compression
ngx_brotli is a set of two Nginx modules developed by Google that enable Brotli compression for web content delivery. Brotli is a modern, general-purpose, lossless compression algorithm combining an optimized variant of LZ77, Huffman coding, and second-order context modeling. It provides compression ratios comparable to the best general-purpose compressors while maintaining speeds similar to Deflate (gzip). These modules help websites and APIs deliver smaller payloads, resulting in faster page loads, reduced bandwidth usage, and better Core Web Vitals. -
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EECE350 Huffman Coding
Huffman Coding Description
The Huffman Coding is used for compressing files and reducing the size of data. The algorithm assign different type of data to to binary representation. The length of a binary number depends on a frequency of this data appears in the file. If it appears often, the binary representation wil contain less bits and vice versa. -
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Huffman codes on a Turing Machine
Computing Huffman codes on a Turing Machine
Computing Huffman codes on a Turing Machine -
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COMRAD-MPI
Compression of Large Genomic Datasets using Parallel Computing
...It captures the long range repeat redundancies in large genomes there by providing a way to compress the large DNA data set. Three stages- Substitution, Clean up and Huffman encoding have been parallelized using message passing library. -
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Static Huffman algorithm implementation using C++/Qt. Can compress files less than 50 Mb. Execute static_build.exe and try it.
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Text Zip
This software zips and unzips a text file
This software zips and unzips a .txt file, using the Huffman encoding algorithm and the list and tree data structures. The result files are named zippedFile.txt and unzippedFile.txt and can be found at the same directory as the Text Zip executable file. -
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hufc is a utility to compress or expand files using Huffman coding. It can use a 16-bit CRC or the IP checksum for error detection.
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Simple Huffman Coder
Simple huffman coder for learning purposes
This project is built for learning purposes so it's implementation is kept simple and easy to read. It has two functions to either encode or decode a file with the expectation that you will modify it to suite your needs best. -
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JHuffman Encoder/Decoder
A Huffman encoder/decoder application
This application will help you to visualize how huffman encoder/decoder works -
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Fanteris ® Sensiborte Application Project. Using Huffman algorithm-based MDK file format, fast backup or encrypted data, encryption can also be used as the application calls.
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In computer science and information theory, Huffman coding is an entropy encoding algorithm used for loss less data compression. It is implemented in java. This software shows you a sample of huffman coding.
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...It is based on arithmetic coding compression. Just a proof of concept of the implementation of a statistical compressor. Aimple Java GUI interface provided. Best efficiency than huffman compressor. Entropy and information
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...Fixed point 16 bit. Purpose is to buid an MP3 player with the lowest possible cost. Works on mono files (going stereo shouldn't be very complicated). Doesn't use Helix. The huffman decoding uses a clustering based algorithm.
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A compression engine based on the Huffman trie algorithm. The algorithm is pretty cpu-light, and as such, runs much more quickly than RAR or other 'heavy' algorithms, but could still achieve decent compression. Use with tar for multi-file archives.
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Basic Compression Library is a portable library of well known compression algorithms, such as Huffman coding, written in standard ANSI C. It is intended to serve as a set of building blocks for specialized compression algorithms.
