Archives
The Burrows-Wheeler block sorting algorithm
The comp.compression FAQ provides some details.
http://www.faqs.org/faqs/compression-faq/part2/section-9.htmlread more from " The Burrows-Wheeler block sorting algorithm "
PNG Support in VRML Browsers
Why does this matter? Apparently you can use PNG files for texture maps in VRML browsers. Learn more about the topic here.
http://www.libpng.org/pub/png/pngvrml.htmlImage compression hardware
The comp.compression FAQ provides a pointer or two.
http://www.faqs.org/faqs/compression-faq/part3/section-1.htmlI need source for arithmetic coding
The relevant answer to this question from the comp.compression FAQ.
http://www.faqs.org/faqs/compression-faq/part1/section-12.htmlZoox is an enhanced version of zoo 2.01
Zoox is an enhanced version of zoo 2.01 from Andre van Dalen. It will allow you to archive a set of files into a series of zoo archives, each limited to a size that you specify. Thus a large number of files on a hard disk can be stored in compressed form on […]
ftp://garbo.uwasa.fi/pc/arcers/zoox2exe.exeLossless Data Compression Toolkit
Version 1.1 of the lossless data compression toolkit by Nico deVries. The C sources in this toolkit include an LZW compressor, AR002 archiver, a PPM like compressor using arithmetic compression, Huffman compressor, splay tree program, and LZRW1. Quite a variety.
ftp://garbo.uwasa.fi/pc/programming/lds_11.zipVector quantization of image subbands: a survey
by P.C. Cosman, R.M. Gray, and M. Vetterli, IEEE Transactions on Image Processing, February 1996. They discuss using VQ in combination with subband and wavelet decompositions.
ftp://isl.stanford.edu/pub/gray/reports/subvq.psread more from " Vector quantization of image subbands: a survey "
Waterloo BragZone test suite
In the BragZone you will find the following:
A suite of test images, the “Waterloo Repertoire”.
Rate-Distortion plots for various compression codecs.
The data from which the above plots are derived.
Sample images at selected compression ratios.
comp.compression FAQ
The official source for the comp.compression FAQ.
ftp://rtfm.mit.edu/pub/usenet/comp.compression/Fractal Frequently Asked Questions and Answers
Mirror of the FAQ
ftp://rtfm.mit.edu/pub/usenet/news.answers/fractal-faqread more from " Fractal Frequently Asked Questions and Answers "
MNG documents
This ftp site appears to contain a ton of MNG documentation, specs, etc. This is the official ftp site for the MNG project, the web pages are still being hosted at the www.cdrom.com site.
ftp://swrinde.nde.swri.edu/pub/mng/documents/FTP directory containin the suite of test images used in the PNG test suite from Willem van Schaik
ftp://swrinde.nde.swri.edu/pub/png/images/suite/Waterloo Fractal Compression Project
The Waterloo Fractal Compression Project is part of a general research programme dedicated to the study of fractal analysis and Iterated Function Systems/Fractal Transforms from both theoretical as well as practical perspectives.
http://links.uwaterloo.ca/Waterloo BragZone
Comparing different image compression programs has always been difficult. As a suite of test images and a place for archiving results, the Waterloo BragZone hopes to overcome these problems. Central to the effort is the Waterloo Repertoire, a suite of 32 test images
http://links.uwaterloo.ca/bragzone.base.htmlEGI compression schemes
This page discusses the various compression schemes used by EGI, Shannon-Fano, BWT, and RLE. EGI is a player of animation sequences.
http://www.compuphase.com/compress.htmDENOISE
A huge program that shows up in a Wavelets link page. I’m not using it because it appears to not be related to data compression.
http://pascal.math.yale.edu/pub/wavelets/software/denoise/demo-sparc/Gordon Cormac’s BWT links
UCSB Signal Compression Lab
Various research areas of some interest in here.
http://scl.ece.ucsb.edu/A comparison of Internet audio compression formats
A good comparsion chart showing the relative merits of various audio formats. Includes links to definitions and other support information for each format.
http://sericyb.com.au/sc/audio.htmlread more from " A comparison of Internet audio compression formats "
MPEG Audio Public Documents
A big batch of pointers to various MPEG documents. Includes press releases and docs on MPEG-2, MPEG-4, MPEG-7, and AAC.
http://sound.media.mit.edu/mpeg4/audio/public/SHORTEN: Simple lossless and near-lossless waveform compression
Tony Robinson - Technical report CUED/F-INFENG/TR.156. A report on an audio compression algorithm that relies on compression of the waveform with Huffman compression of the residuals.
http://svr-www.eng.cam.ac.uk/~ajr/tr156/tr156.htmlread more from " SHORTEN: Simple lossless and near-lossless waveform compression "
Information and Computation
A journal that publishes papers dealing with randomness, pseudorandomness, and Kolmogorov complexity, among other things. Their home page features an on line listing of every paper published in this journal since 1957, with a search tool.
http://theory.lcs.mit.edu/~iandc/The Wavelet Seismic Inversion Lab
Lots of discussion of wavelets here at the Colorado School of Mines Center for Wave Phenomona.
http://timna.mines.edu/~zmeng/waveletlab/waveletlab.htmlJean-loup Gailly
His home page, with English and French language versions.
http://w3.teaser.fr/~jlgailly/LZW - Webopeidia reference page
Short for Lempel-Zif-Welsh, a popular data compression technique developed in 1977 by J. Ziv and A Lempel, and later refined by T. Welsh. It is the compression algorithm used in the GIF graphics file format, which is one of the standard graphic formats used by CompuServe and the World Wide Web.
http://webopedia.internet.com/TERM/L/LZW.htmlThe LZO documentation
Concise documentation on LZO.
http://www.oberhumer.com/opensource/lzo/lzodoc.phpInformation Theory, Pattern Recognition and Neural Networks
Some sort of class outline, including lots of links and references.
http://wol.ra.phy.cam.ac.uk/mackay/itprnn/course.htmlread more from " Information Theory, Pattern Recognition and Neural Networks "
