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data compression link collection

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Miscellaneous Applications with PNG Support

Published in Links, PNG

Miscellaneous apps with PNG support

http://www.libpng.org/pub/png/pngapmi.html

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Posted in November 14th, 1999

What is the state of fractal compression?

The comp.compression FAQ addresses this somewhat controversial question.

http://www.faqs.org/faqs/compression-faq/part1/section-15.html

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Posted in November 14th, 1999

Applications with PNG Support

Just what it says.

http://www.libpng.org/pub/png/pngapps.html

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Posted in November 14th, 1999

What is JPEG?

Published in Newsgroup Posts, JPEG

The comp.compression FAQ attempts to answer this question.

http://www.faqs.org/faqs/compression-faq/part1/section-17.html

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Posted in November 14th, 1999

Toolkits and Programming Libraries with PNG Support

Toolkits and Programming Libraries with PNG Support

http://www.libpng.org/pub/png/pngaptk.html

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Posted in November 14th, 1999

I am looking for source of an H.261/H.263 codec and MPEG

The comp.compressoin FAQ answers this query.

http://www.faqs.org/faqs/compression-faq/part1/section-18.html

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Posted in November 14th, 1999

Tell me about Fast DCT (Discrete Cosine Transform) algorithms

The comp.compression FAQ attempts to do just that.

http://www.faqs.org/faqs/compression-faq/part1/section-19.html

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Posted in November 14th, 1999

PNG Source Code and Libraries

The source for libpng and zlib. Can’t do PNG without them.

http://www.libpng.org/pub/png/pngcode.html

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Posted in November 14th, 1999

Are there algorithms and standards for audio compression?

Published in Newsgroup Posts, Audio

The comp.compression FAQ answers this question.

http://www.faqs.org/faqs/compression-faq/part1/section-20.html

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Posted in November 14th, 1999

PNG Documentation

Links to the PNG documentation in quite a few different formats.

http://www.libpng.org/pub/png/pngdocs.html

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Posted in November 14th, 1999

PKunzip reports a CRC error!

Published in Newsgroup Posts, Zip

The comp.compression FAQ tells you the sad news about this problem.

http://www.faqs.org/faqs/compression-faq/part1/section-22.html

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Posted in November 14th, 1999

Where can I find Lenna and other images?

The comp.compression FAQ attempts to answer this for you.

http://www.faqs.org/faqs/compression-faq/part1/section-30.html

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Posted in November 14th, 1999

How about an Introduction to data compression?

The comp.compression provides the Cliff Notes version of the question.

http://www.faqs.org/faqs/compression-faq/part2/section-1.html

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Posted in November 14th, 1999

PNG Support in Mozilla

Mostly history of how things have been going for support of PNG in the massive Mozilla project.

http://www.libpng.org/pub/png/pngmoz.html

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Posted in November 14th, 1999

What is wavelet theory?

The comp.compression FAQ can tell you exactly what it is.

http://www.faqs.org/faqs/compression-faq/part2/section-3.html

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Posted in November 14th, 1999

Lossless JPEG Codec

A freely redistributable lossless JPEG codec. Encoder, decoder, man pages, full C source, and some documentation.

ftp://ftp.cs.cornell.edu/pub/multimed/ljpg.tar.Z

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Posted in November 13th, 1999

Stuba mirror site

A mirror site for the big compression software site. See 0index.txt for a list of what’s here, an unbelievably large treasure trove.

ftp://ftp.cs.tu-berlin.de/pub/msdos/mirrors/ftp.elf.stuba.sk/pc/pack

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Posted in November 13th, 1999

PPM by Bill Teahan

This ftp site has a few PPM programs, along with Bill Teahan’s thesis.

ftp://ftp.cs.waikato.ac.nz/pub/compression/ppm/

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Posted in November 13th, 1999

FEI STU Bratislava,Slovakia,Europe

A very complete archive of compression programs, freeware, shareware, source, archviers, compressors, etc. They have it all. At last count this site has at least 1000 compression downloads

ftp://ftp.elf.stuba.sk/pub/pc/pack/

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Posted in November 13th, 1999

yabbawhap - Y and AP compression filters

Public domain code by Daniel Bernstein. (Note that this ftp site has an excellent selection of compressoin programs and code.)

ftp://ftp.inria.fr/system/arch-compr/yabba.tar.Z

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Posted in November 13th, 1999

Project Runeberg

Published in Files, Swedish, Benchmarks

A huge collection of Swedish language text files

ftp://ftp.lysator.liu.se/pub/runeberg/src

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Posted in November 13th, 1999

Matsusaka University Anonymous FTP Server

Published in Files, Data Compression

An ftp site for compression software. This includes mirrors of some hard to find sites, such as those of D.J. Wheeler. Needs organization, and I often find it a bit slow from the US.

ftp://ftp.matsusaka-u.ac.jp/pub/compression/

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Posted in November 13th, 1999

Bayes risk weighted vector quantization with posterior estimation for image compression and classification

by Keren O. Perlmutter, Sharon M. Perlmutter, Robert M. Gray, Richard A. Olshen, and Karen L. Oehler IEEE Transactions on Image Processing, February 1996). We investigate several VQ-based algorithms that seek to minimize both the distortion of compressed images and errors in classifying their pixel blocks.

ftp://isl.stanford.edu/pub/gray/reports/bayesvqip.ps

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Posted in November 13th, 1999

Giflib 4.1

Published in Mirror Site

a copy of giflib

ftp://metalab.unc.edu/pub/Linux/libs/giflib/giflib-4.1.0.tar.gz

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Posted in November 13th, 1999

Hack Systems

Published in Commercial Programs, Zip

Hack Systems makes DataSafe, a product that backs up files using Zip format.

http://www.hacksystems.com

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Posted in November 13th, 1999

Context-based, Adaptive, Lossless Image Coder (CALIC) (Huffman)

Xiaolin Wu’s static Huffman coding version of this program. Free of charge for research and non-commercial use. A total of 1.2 MBytes in a dozen or so files.

ftp://ftp.csd.uwo.ca/pub/from_wu/v.huff

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Posted in November 13th, 1999

Datenkompression

A German language set of data compression links. A pretty good page of links, it probably doesn’t matter whether you speak German or not; the references mostly point to English language resources.

http://www.mathematik.uni-bielefeld.de/~bernhard/common/itlinks_fb.html

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Posted in November 11th, 1999

Wavelet Resources from Mathsoft

This page has references to a huge number of Wavelet-related research papers. I don’t know how many of them are online, but it is quite a treasure trove for the curious.

http://www.mathcad.com/products/we_pack.asp?page=3

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Posted in November 11th, 1999

NeuQuant: Fast High-Quality Image QuantizationNeuQuant: Fast High-Quality Image Quantization

The NeuQuant Neural-Net image quantization algorithm (© Anthony Dekker 1994) is a replacement for the common Median Cut algorithm. It is described in the article Kohonen neural networks for optimal colour quantization in Volume 5, pp 351-367 of the journal Network: Computation in Neural Systems (Institute of Physics Publishing, 1994).

http://www.ozemail.com.au/~dekker/NEUQUANT.HTML

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Posted in November 11th, 1999

Zlib for the Palm Pilot

A test version of zlib ported to the 3Com Pilot

http://www.pasta.cs.uit.no/~perm/PASTA/pilot/

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Posted in November 11th, 1999