Data-Compression.org

data compression link collection

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Zlib documentation page

The documentation page for zlib, the free software that implement’s PKWare’s deflate algorithm. Contains links to the zlib specification, and the gzip specification. Links to versions all over the world, in HTML, ASCII, or PostScript.

http://www.gzip.org/zlib/zlib_docs.html

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Posted in August 23rd, 2001

Zlib source in zip format

Published in Source Code, zlib

The current version of the zlib source.

http://www.gzip.org/zlib/zlib.zip

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Posted in August 23rd, 2001

Info-ZIP

Info-ZIP is a diverse, Internet-based workgroup of about 20 primary authors and over one hundred beta-testers, formed in 1990 as a mailing list hosted by Keith Petersen on the original SimTel site at the White Sands Missile Range in New Mexico.

Info-ZIP’s purpose is to provide free, portable, high-quality versions of the Zip and UnZip […]

http://www.ctan.org/tex-archive/tools/zip/info-zip/Info-ZIP.html

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Posted in August 22nd, 2001

RFC 1950 - the zlib technical spec

The zlib technical specification in US size PostScript, by L. Peter Deutsch and Jean-Loup Gailly. This document is the basis for RFC 1950.

http://www.gzip.org/zlib/rfc1950.ps

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Posted in August 22nd, 2001

ZLIB Compressed Data Format Specification version 3.3

The zlib technical specification in ASCII, by L. Peter Deutsch and Jean-Loup Gailly. This document is the basis for RFC 1950.

http://www.gzip.org/zlib/rfc1950.txt

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Posted in August 22nd, 2001

IMAGELIB from Colosseum Builders, Inc - V 4.0

Due to the overwhelming number of requests for JPEG code that works with Borland C++Builder we have put out an Alpha version of the Colosseum Builders’ Image Library for C++. The latest version includes encoders and decoders for JPEG, GIF, Windows BMP, XBM, and PNG. It also includes an interface to VCL so that these […]

http://www.colosseumbuilders.com/Source/imagelib400.zip

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Posted in August 19th, 2001

Clipstream 2.0

Clipstream is a product that compresses audio to either 20Kbps or 32 Kpbs, depending on the speed of the connection. A java applet on a web page is used to decode the stream and play it over the sound card of the target computer. The web site has demos of several types of sound. […]

http://www.clipstream.com/

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Posted in August 19th, 2001

Clipstream Audio

Clipstream makes a java applet that gives web browsers the ability to play streaming audio without any special plugins or apps.

http://www.clipstream.com/products/audio/

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Posted in August 19th, 2001

An Introduction to Wavelets

What appears to be a fairly comprehensive article on Wavelets.

http://www.amara.com/IEEEwave/IEEEwavelet.html

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Posted in August 19th, 2001

Gunzip.c64

Published in Source Code, Zip

Source to a zip decompressor that runs on the Commodore 64! Better yet, this decompressor has source for more than the typical deflate method - it includes the old-school PKWare algorithms: Store, Reduce, Shrink, Implode.

http://www.cs.tut.fi/~albert/Dev/gunzip/

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Posted in August 16th, 2001

CabView

Published in Source Code, Archiving

A Microsoft sample that demonstrates how you can parse and extract component files from a cabinet file.

http://msdn.microsoft.com/msdn-files/026/000/017/CabView_dnld.exe

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Posted in August 12th, 2001

Delphi Zip

Delphi Zip is a set of libraries for Delphi based on the Info-zip library releases.

http://www.geocities.com/siliconvalley/network/2114/

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Posted in August 12th, 2001

Data Compression Newsletter #18 - Bijective Coding

This issue of the DDJ newsletter talks about bijective coding, a coding technique that is fearlessly promoted by David Scott, a regular presence in comp.compression.

http://www.ddj.com/documents/s=1539/ddj0105cm/0105cm001.htm

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Posted in August 11th, 2001

Data Compression Newsletter #20 - Randomness and Complexity

This issue of the newsletter talks about randomness, complexity, and a long-time favorite, recursive compression.

http://www.ddj.com/documents/s=1539/ddj0107cm/0107cm001.htm

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Posted in August 11th, 2001

Information Theory

by Robert B. Ash. This book gets a couple of five star ratings on Amazon.com. If you’re the type to pay close attention to your budget, you’ll like the fact that it sells for under $10!

http://www.amazon.com/exec/obidos/ASIN/0486665216/theinterdatac

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Posted in August 11th, 2001

Multiresolution Signal Decomposition: Transforms, Subbands, Wavelets

Published in Books, Wavelets

by Ali N. Akansu, Richard A. Haddad. This book covers the areas you need to know in order to understand much of modern singal compression techniques. The second edition was issued in January, 2001.

http://www.amazon.com/exec/obidos/ASIN/0120471418/theinternetdatac

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Posted in August 11th, 2001

BIAC

A bijective arithmetic compressor written in Java. Includes all source code, seems to be free.

http://www.mandala.co.uk/biac/index.html

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Posted in August 11th, 2001

BIRLE

A bijective RLE compressor written in Java. Includes all source code, seems to be free.

http://www.mandala.co.uk/birle/index.html

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Posted in August 11th, 2001

Real-Time Low Bit Rate H.263 Video Codec Project

Published in Source Code, Video

Some software from the folks at CMU. Software appears to be free and unfettered, includes a reasonable amount of documentation, and is purported to run on a variety of platforms, including Windows.

http://amp.ece.cmu.edu/projects/H263VideoCodec/

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Posted in August 11th, 2001

Video Clipstream

Clipstream has a java applet that enables streaming video in most web browsers with no additional plugins or downloads.

http://www.clipstream.com/products/video/index_skycap.shtml

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Posted in August 10th, 2001

Digital Image Compression Techniques (Tutorial Texts in Optical Engineering, Vol 7)

Published in Books, Image Compression

by Majid Rabbani and Paul W. Jones. This book shows up in at least one bibiblography, I would appreciate reviews from a reader.

http://www.amazon.com/exec/obidos/ASIN/0819406481/theinternetdatac

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Posted in August 5th, 2001

Vector Quantization and Signal Compression

Published in Books, Quantization

by Allen Gersho and Robert M. Gray. This book shows up in at least one bibiblography, I would appreciate reviews from a reader.

http://www.amazon.com/exec/obidos/ASIN/0792391810/theinternetdatac

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Posted in August 5th, 2001

ZipIt 2.0

Published in Commercial Programs, Zip

ZipIt is a Macintosh program that zips and unzips archives in a format fully compatible with PKZip for the IBM and zip implementations on other systems.

http://www.maczipit.com/

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Posted in July 25th, 2001

MacBzip2 Home Page

A port of Julan Seward’s bzip2 program to the Mac. It’s free and full source is included if you are the adventurous type.

http://persephone.cps.unizar.es/~spd/bzip2/

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Posted in July 25th, 2001

Easy-GZ

Easy-GZ is a compression tool which allows extremely tight compression and quick decompression. Based on the GZip standard and optimized for the Macintosh platform, an easy-to-use, effective GZ compressor has finally been brought to the Mac OS. Is this software free or not? I’m putting it in the free category - if you find […]

http://www.komkon.org/~stiles/easy-gz/index.html

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Posted in July 25th, 2001

Pack Up & Go

Shareware compressor for the Mac. Web site claims it handles universally standard archives, a bit vague for my taste.

http://www.stone.com/PackUpAndGo/PackUpAndGo.html

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Posted in July 25th, 2001

OpenUp

OpenUp allows you to double-click on compressed and archived files and have them open in the Workspace without having to resort to the command-line tools gnutar and gunzip. It also supports opening many other common, and uncommon formats. Appears to be free, with source available.

http://www.stepwise.com/Software/OpenUp/index.html

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Posted in July 25th, 2001

SmartZip

Published in Commercial Programs, Zip

SmartZip is a MacOS application designed to be the simplest and most efficient way to manage ZIP files. You can automatically compress files (or entire folders) by dragging them onto SmartZip and in the same way you can easily expand ZIP files.

http://www.vampiresoft.com/Products/MacOS/SmartZip.html

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Posted in July 25th, 2001

Compact Pro

Compact Pro is a shareware file compression and archival utility for the Mac. It compresses and stores files in “archives” which may span multiple diskettes. Compact Pro supports data encryption (US and Canadian users only) and self-extracting archives.

http://www.cyclos.com/compactpro.htm

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Posted in July 25th, 2001

Mind Expander

Archive expander for the Mac and Windows. Whether you’re using Mac or a PC, MindExpander will expand ZIP, SIT, SEA, HQX, and other popular compression formats. Free software.

http://www.mindvision.com/Consumer/products/ME/Default.asp

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Posted in July 25th, 2001