Archives
Mathematical Combinations and Compression
The comp.compression newsgroup regularly sees posts from folks with incredible compression claims. This one, started by Itai Bar-Haim, is remarkable not so much for its claims, but rather for the incredible length of the thread it spawned. All Atai said was that mathematical combinations have nothing to do with compression. So there.
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=39512e5b%40news.bezeqint.netread more from " Mathematical Combinations and Compression "
On-Line Stochastic Processes in Data Compression
Suzanne Bunton’s PhD thesis. A recent post to comp.compression said that Bunton had used floating point math for arithmetic coding. I haven’t verified this, but it sounds worth a look.
ftp://ftp.cs.washington.edu/tr/1997/03/UW-CSE-97-03-02.PS.Zread more from " On-Line Stochastic Processes in Data Compression "
Image Compression Using Huffman Coding
Tim’s Home Page has three different programs that attempt to compress images using Huffman coding.
http://i3way.com/~tim/Autosophy Information Theory
Klaus Holtz has some interesting ideas about compression theory.
http://www.autosophy.com/information.htmWax Audio Compression
An ad hoc audio compression algorithm implemented in Visual Basic.
http://www.geocities.com/gtsc4/Soft/wax.htmlITU - International Telecommunication Union
The ITU, headquartered in Geneva, Switzerland is an international organization within which governments and the private sector coordinate global telecom networks and services. The ITU is the leading publisher of telecommunication technology, regulatory and standards information. Many publications can be purchased through our Electronic Bookshop or the ITU Publications Online subscription service.
http://www.itu.int/read more from " ITU - International Telecommunication Union "
Wavelet2000 Streaming Video
A streaming video codec designed as a DirectShow filter.
http://wavelet2000.jpg.com/X-PRESS
A Multiplatform data compression program, looks like it runs on a wide variety of IBM mini and mainframes. Company has a dual-language web site, with English and German language versions.
http://www.jet-software.com/xpresse.htmFractal Image Compression Bibliography
This bibliography was compiled from a number of sources, including the extensive bibliographies (in postscript form) by John Kominek and by Dietmar Saupe and Raouf Hamzaoui.
http://www.dip.ee.uct.ac.za/~brendt/bibliographies/html/fractal_coding.htmlZipWiz
This program by Synaptek Software is yet another zip program. Let me know if you find any distinguishing features of this release.
http://www.zipwiz.com/ServerZip
Stonebroom makes a product called ServerZip that compresses ASP web pages for quicker download.
http://www.stonebroom.com/sware.htm#srvzipMaX Compression
This product compresses email before transmission to save network bandwidth.
http://www.c2c.com/compress.htmCompression Technologies, Inc.
These folks make CinePak and CinePak Pro, which are digital compression tools based on the CinePak codec. They have applications that run on both MacOs and Windows.
http://www.cinepak.com/begin.htmlISO Informatique
This French company seems to have some image compression software or service to offer. The web page seems to be entirely in French, although it has some misleading links with a UK flag that you might think meant an English language version was available. Native speakers of French are encouraged to improve on this description.
http://www.iso-informatique.com/Motion Pixels Company
These folks make a product called MP Studio Pro, which is a compression/decompression engine, and seems to be geared towards content producers.
http://www.motionpixels.com/Crystal Net
These guys have a low bit rate video codec designed to transmit moving pictures over POTS lines, with associated products that take advantage of the code.
http://www.crystalnet.com/Scalable Arithmetic Video Codec
This is a free codec that uses 3D-subband coding, progressive quantization and arithmetic coding. Based on work by David Taubman in pursuit of his PhD.
http://www-video.eecs.berkeley.edu/download/scalable/Video Compression and Transmission over Best-effort Datagram Networks
by Wai-tian Tan and Avideh Zakhor . The title of the paper says it all, I think.
http://www-video.eecs.berkeley.edu/download/svip/read more from " Video Compression and Transmission over Best-effort Datagram Networks "
A free C++/MFC source code image framework with jpeg and dib codecs
Free MFC source code for displaying JPEG files. Completely free, can be used in commercial products.DCL User Comment: Very slow and awkward to work with…
http://www.puntoexe.com/develop.htmread more from " A free C++/MFC source code image framework with jpeg and dib codecs "
DWIT Video Codec Homepage
To quote the page: The DWIT video codec is a real-time Differential Wavelet Integer-based Transform software video codec that runs on SGI Octane and O2 workstations. The codec is written in C++ and is distributed under GNU Copyleft.
http://www.brics.dk/~poe/dwithome.htmlAIPNL data compression pages
Information on: UC2 ARC ARJ LZH RAR ZIP UCRYPT JPEG MPEG etc. I think AIPNL makes UltraCompressor.
http://www.xs4all.nl/~aipnl/Plain Simple Zip 1.0
A cheap shareware program that performs your basic Zip and Unzip functions.
http://www.mrgalaxy.com/mrgalaxy4.htmLHA Compression
This page has a good set of pointers to LHA programs and source code, including variants such as AR002, lz_comp2, and Lharc.
http://members.aol.com/DuckGroup/lha_comp.htmlData Compression Links from Epsilon Coder
Links that mostly point to some papers and source code, concentrating on lossless LZ type compression.
http://www.cs.pdx.edu/~idr/compression/read more from " Data Compression Links from Epsilon Coder "
Compression Engines, Inc.
Compression Engines, Inc. has a file format called WIF, which stands for Wavelet Image Format. They licensed it from HARC, and have created and ActiveX control, a browser plugin, a standalone program, and the requisite Photoshop plugin. Check it out.
http://www.cengines.com/Zlibc
Zlibc emulates a compressed file system. This lets you keep all your executables compressed in one place, unzipping them on the fly as they are needed. Looks like it works with various Linux and UNIX type sytems, including Solaris. I’m guessing that it’s free, please correct me if I’m wrong.
http://zlibc.linux.lu/Data Compression Technology by Compris.com
These folks appear to be selling some lossless compression technology, but I’m not quite able to determine what it is.
http://www.compris.com/Densifier/en/read more from " Data Compression Technology by Compris.com "
Geolytics
This company appears to be in the business of packaging demographic data for research and commercial interests. As part of that, they apparently have some technology for performing some compression on the data sets.
http://www.geolytics.com/customwork/compression.htmlGT Technology
This site advertises a bunch of nifty looking codecs, including TELP, JPEG, Speech, MPEG, and wavelet compressors. I can’t quite determine exactly what form the products come in.
http://www.gt-tech.com/technology.htmlTiernan Communications, Inc.
These folks sell a couple of boxes that do MPEG-2 encoding. Looks like they are oriented towards the video broadcasting business.
http://www.tiernan.com/
