Author Page
Data Compression
An overview of the field by Debra A. Lelewer and Daniel S. Hirschberg. Lots of informative text. This appears to be a survey paper that was adapted for presentation on the web. Lossless compression techniques only!
Adaptive Huffman Coding
A nice description of Adaptive Huffman Coding, as seen through a couple of different algorithms. I believe this is part of a survey paper by Debra A. Lelewer and Daniel S. Hirschberg.
Uzi Vishkin
Home Page for Uzi Vishkin, of University of Maryland. Areas of research of interest in data compression include suffix trees and string matching.
Unisys LZW Page
Some information on LZW, it looks as though this has info on Licensing, but I’m not sure. All information is in Japanese.
DMC.C
Software implementing a complete DMC codec, plus code for a couple of different arithmetic encoders, and a linear time Huffman tree builder.
This program implements Dynamic Markov Compression (DMC) as described in
“Data Compression using Dynamic Markov Modelling”,
by Gordon Cormack and Nigel Horspool
in Computer Journal 30:6 (December 1987). The Guazzo arithmetic coder is used here.
David Salomon’s home page
Mr. Salomon is the author of Data Compression: The Complete Reference.
Data Compression: The Complete Reference, 2nd edition
by David Salomon. This book is intended to provide an overview of the many different types of compression: it includes a taxonomy, an analysis of the most common systems of compression, discussion of their relative benefits and disadvantages, and their most common usages.
Please use
this link to purchase the book through Amazon.com. Your purchase will […]
Gordon V. Cormack
Gordon is the author of DMC and many publications related to data compression. This is is home page, which has links to much of his work.
The USC-SIPI Image Database
The USC-SIPI image database is a collection of digitized images. It is maintained primarily to support research in image processing, image analysis, and machine vision. Contains copies of the mystical goddess Lenna.
Fractal Frequently Asked Questions and Answers
Mirror of the FAQ
http://www.cis.ohio-state.edu/hypertext/faq/usenet/fractal-faq/faq.html
Tim Bell’s home page
Tim Bell is one of the many compression mavens in Australia and New Zealand. This page contains links to many of his ongoing projects.
BMF
BMF program is lossless/near-lossless image compression utility. It
supports true colour, high colour, greyscale and paletted images compression.
James Storer’s home page
James Storer chairs the annual DCC event, and keeps busy in many other areas. Back in the bygone era his book on Data Compression had a lock on the market. See what he’s been up to lately here.
The Design and Analysis of Efficient Lossless Data Compression Systems
Our thesis is that high compression efficiency for text and images can be obtained by using sophisticated statistical compression techniques, and that greatly increased speed can be achieved at only a small cost in compression efficiency.
Complete paper is included in PS format.
http://www.cs.brown.edu/publications/techreports/reports/CS-93-28.html
Jeff Vitter’s Recent Papers
Jeff Vitter is a publishing machine. A substantial subset of is work deals with data compression and/or information theory. On top of all that, he’s good enough to keep most of his work online in ps and pdf format.
Ashok C. Popat’s dissertation
The dissertation itself, in PS format, along with code used in the dissertation. The code implements k-ary arithmetic compression.
Bernie’s TMW0.51 Page
TMW is a program for losslessly compressing greyscale images that gives world class compression ratios, at the cost of being tremendously CPU intensive. The current version is TMW_0.51, and is still completely experimental.
Bernie’s TMW0.51 Page
The home page for TMW. TMW is a program for losslessly compressing greyscale images that gives world class compression ratios, at the cost of being tremendously CPU intensive. The current version is TMW_0.51, and is still completely experimental
UUNet FTP Site
This ftp site has copies of Zoo, ARC, gzip, and zip, in some cases for multiple platforms.
PKZIP Appnote
This ftp site contains the PKZIP and InfoZip appnotes in various incarnations, plus RFCs 1950, 1951, and 1952. It is referenced in the zlib docs as if it were the official location for the gzip specification. If you are attempting to understand the format of PKZIP archives you need this document Copies of RFCs 1950, […]
Notes on suffix tree construction
Notes on suffix tree construction, some course notes for COMP 612: Graduate Seminar in Compiler Construction, includes some pointers to important papers.
DataCompression.info user David D. had this complaint: None of the links work on this page, all there is is a short paragraph on suffix trees. I have to agree, it’s a rather strange page.
A mirror of the comp.compression FAQ
Booz 2.0 — Barebones Zoo Extractor/Lister
Booz 2.0 is a small, memory-efficient, public domain Zoo archive extractor/lister. It is not fancy. It does not recognize the advanced features available in current versions of Zoo, such as long filenames, directory names, comments, and multiple file generations. Extraction always uses a short MS-DOS format filename and all extracted files go
into the […]
CODEC v3.10
CODEC is a software package that focuses on the non-destructive compression/decompression and the encryption/deciphering of one or more files in the same work session.
CCITT standard fax images
TIFF versions of the CCITT images.
JAM ™ Version 1.25
JAM is a transparent hard disk compressor, which enlarges your disk space. With the JAM you will forget about annoying messages like ‘Insufficient disk space…’ with no need to purchase a new hard disk.
JRCHIVE 1.10
JRchive is a program for compressing and storing files in an archive. It has a “concatenated archive” option that puts the files in the archive first, then compresses it for better compression ratios.
Common Archives Library Project
Home page for the Common Archivers Library project. This page is completely in Japanese, but an English version of the index is available at a single click. The goal of this project appears to be to provide standard library software that works with any and all archives. Good idea.
