Data-Compression.org

data compression link collection

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

         

Posted in January 13th, 2000

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

* * *    

Posted in January 13th, 2000

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

         

Posted in January 11th, 2000

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

         

Posted in January 10th, 2000

H.263/H.263+ Research Library, Release 0.2

A free H.263 library.

http://spmg.ece.ubc.ca/h263plus/h263plus.html

         

Posted in January 7th, 2000

Bi-Level Image Coding (JBIG-2)

A free JBIG-2 coder.

http://spmg.ece.ubc.ca/jbig2/software/main.html

* * * * *

Posted in January 7th, 2000

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

         

Posted in January 7th, 2000

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

         

Posted in January 6th, 2000

Complexity and Entanglement

Charles Bloom thinks out loud about complexity.

http://www.cbloom.com/news/bio_complexity.html

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000

Shannon’s derivation of the entropy function

Charles Bloom with his take on the work of Our Founder.

http://www.cbloom.com/news/entropy.html

         

Posted in January 6th, 2000

No Magic Compressors

Charles Bloom explains why there is no Santa Claus.

http://www.cbloom.com/news/nomagic.html

         

Posted in January 6th, 2000

Minimum Entropy

Charles Bloom discusses just what Minimum Entroyp should mean to you.

http://www.cbloom.com/news/minent.html

         

Posted in January 6th, 2000

RM vs. DCC95

Charles Bloom applies the taste test to two different arithmetic coders.

http://www.cbloom.com/news/rm_dcc95.html

         

Posted in January 6th, 2000

Blocked Entropy

More thoughts about entropy shared with us from Charles Bloom.

http://www.cbloom.com/news/blockent.html

         

Posted in January 6th, 2000

The Kraft Inequality

Published in Newsgroup Posts, Coding

A basic priniciple of coding.

http://www.cbloom.com/news/kraft.html

         

Posted in January 6th, 2000

ACB

A post from Leonid A. Broukhis discussing the mysterious ACB compressor by George Buynovksy.

http://www.cbloom.com/news/leoacb.html

* * * * *

Posted in January 6th, 2000

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

* * * * *

Posted in January 6th, 2000

Peter Fenwick’s LZP = BlockSort = Shannon

Part of a conversation between Peter Fenwick and Charles Bloom.

http://www.cbloom.com/papers/fenlzp.html

         

Posted in January 6th, 2000

Some notes on implementing Arithcoders

Parts of an email conversation between Charles Bloom and Mark Carrol.

http://www.cbloom.com/algs/arinotes.html

         

Posted in January 6th, 2000

General Prediction

Some thoughts on modeling from Charles Bloom.

http://www.cbloom.com/news/predict.html

* * * *  

Posted in January 6th, 2000

Compression as the God of Science

Ramblings from a true believer.

http://www.cbloom.com/news/compgod.html

         

Posted in January 6th, 2000

Squeez

I believe this is the US sales home for the product Squeez, which makes its home in Germany.

http://www.squeez.com/

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000

A discussion on Audio Coding, January 1999.

Published in Newsgroup Posts, Audio

Charles Bloom thinks out loud about audio coding.

http://www.cbloom.com/news/audiocoding.html

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000

Notes on Low-N Quantum Information Theory

Charles Bloom thinks about quantum information theory.

http://www.cbloom.com/news/qucoder.html

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000

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

         

Posted in January 6th, 2000