Archives
Data Compression: Bits, Bytes, and Beefalo
by Walter Korman. An introductory article with a very brief look at the field, along with some links.
http://www.go2net.com/internet/deep/1997/01/01/read more from " Data Compression: Bits, Bytes, and Beefalo "
Shannon Fano Coding
An overview of Shannon Fano coding from the folks at the DataCompression Reference Center.
This link points to an archived site, as the original has disappeared. Links on the archived page may or may not work properly.
Data Compression
by Jack Ganssle. A quick look at lossless compression, including RLE, Huffman coding, and LZ techniques.
http://www.ganssle.com/articles/acompres.htmEE 5585 Home Page
A collection of class notes, homework assignments, and links for a class on Data Compression at the University of Minnesota.
http://www.ece.umn.edu/users/kieffer/ece5585.htmlACB, DMC, PPM, LZ - Classification, Idea, Comparision
by George Buyanovsky. One of the only existing explanations of the mysterious ACB algorithm.
http://www.cs.pdx.edu/~idr/unbzip2.cgi?compression/acb_compress.html.bz2read more from " ACB, DMC, PPM, LZ - Classification, Idea, Comparision "
Introduction / Lossless Data Compression
A web page that provides an overview of lossless techniques.
http://www.vectorsite.net/ttdcmp1.htmlCInfoZip
CInfoZip by Alchemy Lab is an MFC class that makes it easy to add Zip support to your C++ programs written using Visual C++. Despite the fact that Alchemy Labs is a commercial operation, they’re giving this code away for free.
http://www.alchemy-lab.com/devcorner/infozip/Compression Algorithms
This page has links to a bunch of algorithm descriptions, courtesy of the Data Compression Reference Center.
This link points to an archived site, as the original has disappeared. Links on the archived page may or may not work properly.
Introduction to Data Compression
A set of slides, maybe to accompany a lecture. Covers basic info theory and data compression.
http://www.ifi.uio.no/~ftp/publications/cand-scient-theses/SHuseby/html/node41.htmlInformation Theory Primer
A very gentle introduction to Shannon’s discrete entropy, written for moleculary biologists.
Reader Mike said To the point explanation of the “why” of some of the math. This allows you to look a symbols and understand the _meaning_ not just the math..
ftp://ftp.ncifcrf.gov/pub/delila/primer.psIstraSoft
IstraSoft appears to make some speech codecs, supplied as Windows DLLs. Plus some discussion on their web page re: English phonetics.
http://www.istrasoft.com/Archivers.8m.com
This site promises to deliver links and copes of every archiver know to man, along with news, polls, and more. The usual disclaimer apologizes for not being quite there due to a recent change in management.
http://archivers.8m.com/Dr. Sandra Woolley’s Data Compression Linkes
An assortment of links on a wide variety of compression related topics. Includes a rating system indicating the value of the links.
http://www.eee.bham.ac.uk/woolleysi/book_web.htmread more from " Dr. Sandra Woolley’s Data Compression Linkes "
MKS Unix Utilities
MKS makes UNIX utilities available on other platforms. Naturally, this includes pack, unpack, mkszip, and so on.
http://www.datafocus.com/docs/cmd%5Findex.aspInteractive Data Compression Tutor
An interactive introduction to Data Compression. Covers lossless methods.
http://www.eee.bham.ac.uk/WoolleySI/All7/body0.htmTIFF Software
A collection of free TIFF software. This may help you decode files in TIFF format. Includes some documentation files.
ftp://ftp.sgi.com/graphics/tiff/Onet Attempt of a Compression Algorithm using BWT
by Bernhard Balkenhol and Yuri M. Shtarkov. Details tests of an improved version of the basic algorithm.
http://www.mathematik.uni-bielefeld.de/sfb343/preprints/pr99133.ps.gzread more from " Onet Attempt of a Compression Algorithm using BWT "
Lycos - Computers/Algorithms/Compression/
A page of links on the Lycos portal.
http://dir.lycos.com/Computers/Algorithms/Compression/read more from " Lycos - Computers/Algorithms/Compression/ "
Compressing Sparse Matrices
Some pseudo-code describing a way to maintain sparce matrices.
http://www.angelfire.com/ri/hirschberg/Lycos - Computers/Software/Data Compression/
The Lycos portal page of links to data compression software. All the usual suspects are here, such as PKWare, along with some others you might have missed.
http://dir.lycos.com/Computers/Software/Data_Compression/read more from " Lycos - Computers/Software/Data Compression/ "
xPress - Cross Platform File Compression
These guys appear to be selling a conventional file compressor that works on quite a few different desktops and mainframes. The product description on the web page manages to obscure the facts with a lot of marketing-ese, so I’m a bit fuzzy on the details.
http://www.iri.com/external/products/xpress/xpress.htmlStandard Speech Codecs
Descriptions of various speech codecs, include G.711, G.721, GSM, and CELP. Each codec gets a brief description plus pointers to additional material and source code.
http://rice.ecs.soton.ac.uk/jason/speech_codecs/standards/index.htmlPin-Outs Algorithms : Compression
This portal site has a page dedicated to compression, plus a number of sub-pages with pointers to companies, researchers, and a few other odds and ends.
http://www.pin-outs.com/directory/Algorithms/Compression/Optivision
This company says they are a big name in the world of network streaming video. Products on their web side seem to be oriented towards MPEG.
http://www.optivision.com/Zapex
Zapex makes chips, chip cores, and boards dedicated to real time compression, including MPEG-2 and AC3.
http://www.zapex.com/Sorenson Vision
Sorenson makes hardware and software for video conferencing and other video streaming apps.
http://www.s-vision.com/Efficient stochastic source coding and an application to a Bayesian network source model
by Brendan J. Frey and Geoffrey E. Hinton. A new algorithm for generating efficient codes.
http://www.psi.toronto.edu/~frey/papers/stsc.abs.htmlEPWIC: Embedded Predictive Wavelet Image Coder
A grey-scale wavelet compressor written in C. Includes pointers to source code and the paper presented on this work.
http://www.cis.upenn.edu/~butch/EPWIC/read more from " EPWIC: Embedded Predictive Wavelet Image Coder "
Pierre Moulin’s Papers
Pierre Moulin has authored quite a few papers on video and image compression. Unfortunately, the full text is available for only a few papers. Perhaps you could send Pierre an email asking him to put more stuff online.
http://www.ifp.uiuc.edu/~moulin/paper.html