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rfc1661 - The Point To Point Protocol

Posted in April 26th, 2000

The description of the point to point protocol, which of course includes a little tiny bit on compression, since you can specify compression in a packet header.

http://www.cis.ohio-state.edu/htbin/rfc/rfc1661.html

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NASA Vision Group Publications

Posted in April 26th, 2000

A big batch of image compression papers are on line here. I guess the entire contents of all the papers is online thanks to the contributions of the US government. For image compression, this is a fantastic resource.

http://vision.arc.nasa.gov/publications/publications.html

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Phil Katz followup

Posted in April 24th, 2000
Published in People, Zip

More news regarding the death of Phil Katz.

http://www.jsonline.com/wi/042200/wi--softwarepioneer042200124658.asp

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BCB and Delphi Freeware Zip Component page

Posted in April 23rd, 2000

A set of components and DLLs that allow you to manipulate zip files from within your Delphi or C++ Builder programs. It’s all free. Don’t know ifyou can use the DLLs with any other languages.

http://members.tripod.lycos.nl/Vleghert/

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Farewell to Phil Katz

Posted in April 22nd, 2000
Published in People, Zip

An appreciation of Phil Katz by Dr. Dobb’s Journal.

http://www.ddj.com/news/stories/2000/04/do200004nw012.htm

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PICPress

Posted in April 22nd, 2000

An image conversion program that does smoothing of JPEG images.

ftp://www.jpg.com/pub/PP35.EXE

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BWT and different alphabet orders

Posted in April 22nd, 2000

A long thread dealing with a possible way to some improvement on BWT compression.

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=39013198.26504471%40news.meganews.com

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LEAD Technologies, Inc.

Posted in April 20th, 2000

These guys are big in the world of software that does image processing. What does this have to do with data compression? Well, they do have products that render, convert, and create compressed formats such as JPEG, TIFF, and GIF.

http://www.leadtools.com/

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ScalVico

Posted in April 18th, 2000

ScalVico is a Scalable Video Codec based on lattice VQ and motion compensation.

http://www4.informatik.uni-erlangen.de/~jnweiger/ScalVico/Pyramid/

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DC Archiver

Posted in April 18th, 2000

DC is a BWT based archiver by Edgar Binder. Is it free? Not sure, but no source.

ftp://ftp.elf.stuba.sk/pub/pc/pack/dc124.zip

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DAX source code

Posted in April 18th, 2000

This code is reputedly good for compressing B/W images. The web site refers to it as Difference Adaptive compression. It’s patented.

http://dakx.com/software/simdaxg.c

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PPMD Var ‘F’ (Dmitry Shkarin)

Posted in April 18th, 2000
Published in Source Code, PPM

A file to file compressor that uses the PPMD algorithm is boasts of being very fast.

ftp://ftp2.itb.it/files/PC/SAC/pack/ppmdf.rar

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ScalVico H.263 Support

Posted in April 18th, 2000

ScalVico is a project that refers to a Scalable Video Codec. Apparently the package now supports H.263.

http://www4.informatik.uni-erlangen.de/~jnweiger/ScalVico/vic/

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Welcome to the ScalVico H.263+Pyramid page

Posted in April 18th, 2000

A Netscape plugin and a standalone app that does some sort of H.263 decoding.

http://www4.informatik.uni-erlangen.de/~jnweiger/ScalVico/PyraH263/

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The bzip2 and libbzip2 official home page

Posted in April 15th, 2000

The home page for Julian Seward’s great BWT projects: a compression program and a library. A prelease of bzip2 1.0 was released 4/15/00

http://sources.redhat.com/bzip2/

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Image Power Selected by the ISO Committee as Reference Code Supplier for JPEG 2000

Posted in April 13th, 2000

An Image Power press release announcing the fact that the JPEG2000 committee has annointed them to supply the reference code for the new standard.

http://www.imagepower.com/news/media_center/pr/2000/pr-mar27-00.html

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Unzipping Files with java.util.zip.ZipFile

Posted in April 12th, 2000

A short article with some code that illustrates how one would unzip archives using built-in java classes. Registration required to view the page.

http://www.inquiry.com/techtips/java_pro/10MinuteSolutions/10min0300.asp

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JPEG 2000 Codec

Posted in April 12th, 2000

Image Power has released a beta version of their JPEG2000 codec. It’s free to use for evaluation and non-commercial applications.

http://www.imagepower.com/products/products.htm

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Viper - The JPEG 2000 Resource Page

Posted in April 12th, 2000

A page of links and information from the image processing folks at Purdue.

http://stargate.ecn.purdue.edu/~ips/tutorials/j2k/

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Asymptotic Optimality of the Block Sorting Data Compression Algorithm

Posted in April 11th, 2000

Arimura shows that BWT is asymptotically optimal. Paper in PDF format.

http://www.hn.is.uec.ac.jp/~arimura/ieice98.html

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Paper on BWT for source estimation

Posted in April 11th, 2000

A long and entertaining discussion of BWT compression in the comp.compression newsgroup.

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=Pine.GSO.4.21.0003241454120.4055-100000%40grenada.csl.uiuc.edu

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Woontack Woo - Publications

Posted in April 9th, 2000

Woontack Woo has published quite a few papers dealing with coding and compression of stereo images. This is one of the few places you can find information on this somewhat esoteric subject.

http://biron.usc.edu/~wwoo/resume.html#publications

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BMPSqueezer

Posted in April 9th, 2000

An interesting program that takes an image and squeezes it down into a Java applet. Shareware, so you can give it a spin for free.

http://www.kagi.com/equitysoft/squeezer.html

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ITU Series G Specifications

Posted in April 9th, 2000

All the voice coding specs you can shake a stick at. Get your checkbook out, though, these aren’t free.

http://www.itu.int/itudoc/itu-t/rec/g/g700-799/index.html

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ArchivePro 2000

Posted in April 9th, 2000

ArchivePro isn’t a zip program, it’s a database for all the files you’ve stored. In the process it often compresses files for you, which is how it ended up in my database.

http://www.archivepro.com/

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http://www.barrt.ru/parshukov/imcomp.htm

Posted in April 4th, 2000

A shareware image compression program that supports a ton of different formats.

http://www.barrt.ru/parshukov/imcomp.htm

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Aladdin Dropstuff

Posted in April 4th, 2000

Another product from Aladdin, makers of the world-famouse Stuffit program for the Mac. DropStuff comes in versions for the Mac and Windows, and will store archives in either Zip or Sit formats.

http://www.aladdinsys.com/dropstuff/

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TIFF Software

Posted in April 2nd, 2000

A library that supports reading and writing of TIFF files.

http://www.libtiff.org/

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Papers by Bernhard Balkenhol

Posted in April 2nd, 2000

Bernhard seems to have written quite a few papers on data compression. A few of them are in German, a few in English. All in ps.gz format. Bernhard has links to published papers and preprints on this page, be sure to check them all.

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

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ZipWave

Posted in April 2nd, 2000

A shareware visual archiving program that advertises that it supports 15 popular archive formats. Note the link to the French version of the program and web page.

http://www.world-of-newave.com/zipwave/en/index.htm

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