Showing 14 open source projects for "compression algorithm"

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  • 1
    Brotli

    Brotli

    Brotli compression format

    Version 1.0.9 contains a fix to "integer overflow" problem. This happens when "one-shot" decoding API is used (or input chunk for streaming API is not limited), input size (chunk size) is larger than 2GiB, and input contains uncompressed blocks. 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...
    Downloads: 29 This Week
    Last Update:
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  • 2
    FractalImageCompression

    FractalImageCompression

    Java Fractal Image Compression based on Delaunay triangulation

    Implementation of the algorithm of the paper: "Fractal image compression based on Delaunay triangulation and vector quantization" It is a Fractal compression algorithm, based on relationships between regions of the image (in this case triangles), rather than in explicitly the pixel values themselves. Video demo: https://frojasg1.com:8443/resource_counter/resourceCounter?operation=countAndForward&url=https%3A%2F%2Ffrojasg1.com%2Fdemos%2Faplicaciones%2FfractalCompressor...
    Downloads: 0 This Week
    Last Update:
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  • 3
    Crunch

    Crunch

    Insane(ly slow but wicked good) PNG image optimization

    Crunch is an image compression tool for lossy PNG image file optimization. Using a combination of selective bit depth, color palette reduction and color type, as well as zopfli DEFLATE compression algorithm encoding that employs the pngquant and zopflipng PNG optimization tools, Crunch is effectively able to optimize and compress images with minimal decrease in image quality. While it may produce file size gains larger than those produced by lossless approaches, the impact on image quality...
    Downloads: 4 This Week
    Last Update:
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  • 4
    clzw

    clzw

    Implementation of LZW compression algorithm in C

    Simple, fast implementation of LZW (Lempel–Ziv–Welch) data compression algorithm in C. - Console encoder/decoder tools - OS independent - Could be used in embedded projects - Works with raw code-stream LZW features: - Hardcoded dictionary size - Variable code size - Code search is performed by hash table and embedded in dictionary linked lists (encoder) - No dynamic memory allocation
    Downloads: 2 This Week
    Last Update:
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  • 5
    MicroZip

    MicroZip

    Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile

    MicroZip is a powerful file compression and encryption utility for mobile phones which allows you to create and extract compressed archives in multiple formats and encrypt sensitive information with powerful AES-256 encryption. MicroZip can create and extract ZIP,TAR,TGZ,TBZ2 archives and extract many other formats as JAR,GZ,BZ2,TBZ,WAR,BZIP2,GZIP,Z,TAZ,CBZ etc. MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP...
    Downloads: 1 This Week
    Last Update:
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  • 6
    backdup

    backdup

    BackDup is a Duplicity front-end for MacOS and Linux

    BackDup is a Duplicity (http://duplicity.nongnu.org/) front-end for MacOS and Linux written in Java. Duplicity creates bandwidth-efficient backup using the rsync algorithm. Mac OS users: please install Duplicity via macports (https://www.macports.org/) Linux users: install Duplicity via your package manager as usual.
    Downloads: 0 This Week
    Last Update:
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  • 7
    sfxcompress
    The utility sfxcompress is a bash script used to pack and encrypt the current directory on a self-extracting file. It also includes the calculation of the MD5 function to check if the compressed file is correct.
    Downloads: 0 This Week
    Last Update:
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  • 8
    The RLE compression pack is a set of utilities to compress and decompress files using RLE algorithm.
    Downloads: 0 This Week
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  • 9
    An algorithm for compression and decompression of Binary Decision Diagrams will in many cases reduce the size of the BDD to 1-2 bits per node.
    Downloads: 0 This Week
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  • 10
    Calculates differences of executable files using a randomized algorithm for matching with mismatches.
    Downloads: 0 This Week
    Last Update:
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  • 11
    Simplify is aimed to raise images compressibility by using a reversible blurring algorithm.
    Downloads: 0 This Week
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  • 12
    A Compression Utility - based on own bit algorithm
    Downloads: 0 This Week
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  • 13
    Jarsync is a Java implementation of the rsync algorithm, a delta compression algorithm for fast network file transfers.
    Downloads: 2 This Week
    Last Update:
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  • 14

    Firefly's Clean Lzo

    A human-readable ISC-Licensed implementation of the LZO1X algorithm.

    LZO is a compression library which is widely used around the world. The main problem with LZO is that it is absolutely not human readable. People have done crazy stuff to get LZO to run in their language. Usually it implies inline assembly or trying to execute data which actually contains machine code. This is sick. Whoever is responsible for this sorry situation ought to be ashamed. So I'm going to deobfuscate LZO and provide a ISC implementation of this algorithm in Python and C...
    Downloads: 0 This Week
    Last Update:
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