Delphi Skunkworks - Data Compression
A page full of links to data compression resources for Delphi Programmers. Mostly libraries.
http://www.delphipages.com/skunkworks/swcompress.html
Web Technologies
Byte looks back at the amazing compression claims of a company named Web Technlogies.
http://www.byte.com/art/9511/sec3/art12.htm
UFA Archiver version 0.04 Beta 1
A freeware archiver that claims high compression ratios. The hypermart web site includes two additional experimental versions of this archiver called BIX and 777.
http://compression.hypermart.net/ufa/index.html
SelfExtract-Pro
Colin Mummery has created this product which has zip/unzip capability, plus the ability to create self-extracting JAR files. It’s free.
http://www.kagi.com/equitysoft/se.html
H.263/H.263+ Research Library, Release 0.2
Bi-Level Image Coding (JBIG-2)
JPEG-LS Public Domain Code
A free implementation of the upcoming JPEG-LS compression standard.
http://www.stat.columbia.edu/~jakulin/jpeg-ls/mirror.htm
How Big is Nothing?
Charles Bloom puts the noggin to work on this question. It’s not as foolish as the title might make it sound.
http://www.cbloom.com/news/nullsize.html
Radpack.c
Charles Bloom works up a quick coder that will compress random bytes down to about 6 bits per byte. Quite a feat, but it doesn’t stand up to close scrutiny.
http://www.cbloom.com/news/radpack.c
Notes on the MACM-96 Arithmetic Encoder
Charles Bloom talks about this encoder, along with a comment from the author of the algorithm.
http://www.cbloom.com/news/macm.html
Shannon’s derivation of the entropy function
Minimum Entropy
Charles Bloom discusses just what Minimum Entroyp should mean to you.
http://www.cbloom.com/news/minent.html
RM vs. DCC95
Charles Bloom applies the taste test to two different arithmetic coders.
http://www.cbloom.com/news/rm_dcc95.html
Blocked Entropy
More thoughts about entropy shared with us from Charles Bloom.
http://www.cbloom.com/news/blockent.html
ACB
A post from Leonid A. Broukhis discussing the mysterious ACB compressor by George Buynovksy.
http://www.cbloom.com/news/leoacb.html
George Buynovsky’s Post on ACB
ACB is poorly understood. The author, George Buynovsky, has only made a few public comments on the algorithm. This is one of them.
http://www.cbloom.com/news/bygeorge.html
Peter Fenwick’s LZP = BlockSort = Shannon
Part of a conversation between Peter Fenwick and Charles Bloom.
http://www.cbloom.com/papers/fenlzp.html
Some notes on implementing Arithcoders
Parts of an email conversation between Charles Bloom and Mark Carrol.
http://www.cbloom.com/algs/arinotes.html
Compression as the God of Science
Squeez
I believe this is the US sales home for the product Squeez, which makes its home in Germany.
Motion compensation without side information for Wavelet Video
Charles Bloom gives a short bit of thought about just what the title says.
http://www.cbloom.com/news/wave_video.html
A discussion on Audio Coding, January 1999.
A Fallacy in Model + Encoder
Charles Bloom thinks out loud about the canonical model + encoder of contemporary data compression.
http://www.cbloom.com/news/fallacy.html
Notes on Low-N Quantum Information Theory
The 2nd law of stat-mech in info-theory
Charles Bloom puts that physics background into play in the world of information theory.
http://www.cbloom.com/news/2nd_law.html
More than one bit per bit?
Charles Bloom discusses the hopelessness of thinking you can get something for nothing.
http://www.cbloom.com/news/moreinfo.html