Archives
The Canterbury Corpus
This is the home page for the Canterbury Corpus, a test suite designed to provide a standard set of files for lossless compressoion testing. You will find links to the actual files in the test suite, as well as papers and test results.
http://corpus.canterbury.ac.nz/The British National Corpus
The British National Corpus (BNC) is a 100 million word collection of samples of written and spoken language from a wide range of sources, designed to represent a wide cross-section of current British English, both spoken and written.
http://info.ox.ac.uk/bnc/The Calgary Corpus
This is the home page for the Calgary Corpus. This set of files has long been the standard used for comparison of various lossless compression techniques.
http://links.uwaterloo.ca/calgary.corpus.htmlRoss Williams
Ross Williams did some seminal work in the area of dictionary based encoders in the late 1980s and early 1990s. His LZRW algorithms were not only innovative and interesting, but they managed to place Ross right in the middle of some early software patent issues.
http://www.ross.net/compressionShorten
Shorten is an audio compression program by SoftSound. Shorten is advertised as a low complexity audio coder that can compress in lossless or lossy mode. This is the home page with links to the download page. Includes source and binaries for DOS, Windows, and Linux. Evaluation version is available.
http://www.softsound.com/Shorten.htmlGreg Roelofs
Greg Roelofs’ home page. Greg has invested many years of his life towards good works such as PNG, zlib, and Info-ZIP. You might know him as Cave Newt.
http://www.sonic.net/~roelofs/Bibliography on Source Coding/Data Compression
Mitsuharu Arimura’s page of links and references to a wide variety of papers and books on lossless compression. Some of the links are listed in English, others in Japanese.
http://www.hn.is.uec.ac.jp/~arimura/compression_papers.htmlread more from " Bibliography on Source Coding/Data Compression "
Sending TV Down the Phone Line
ADAM CLARK could be sitting on an invention with the potential to turn the computer world on its head, not to mention the worlds of telecommunications and broadcasting. The 22-year-old Knoxfield developer claims to have cracked a conundrum that has stumped researchers for years - how to deliver broadcast quality sound and video down […]
http://newsstore.f2.com.au/rlprod/members_rlsearcher?ac=viewDocument&docID=news980519_0332_5622&docType=N&rs=1&sy=age&kw=adam+clark&pb=all_ffx&dt=selectRange&dr=5years&so=relevance&la=search&ss=AGE&sf=article&rc=10&rm=200&clsPage=1GIF89A Specification
This is a copy of the second GIF specification from CompuServe. It added quite a few features to the GIF format. Probably the best well known of these would be the ability to add animation to GIF files.
Reader Andrew T. says: The definitive document, what more can you ask for?
http://www.w3.org/Graphics/GIF/spec-gif89a.txtPNG (Portable Network Graphics) Specification Version 1.0
W3C Recommendation 01-October-1996. This document describes PNG (Portable Network Graphics), an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel. Sample depths range from […]
http://www.w3.org/TR/png.htmlread more from " PNG (Portable Network Graphics) Specification Version 1.0 "
Wotsit’s Archive Formats
Wotsit’s Format, the complete programmer’s resource on the net. This site contains file format information on hundreds of different file types and all sorts of other useful programming information; algorithms, source code, specifications, etc. This page has information on scads of archive formats.
http://www.wotsit.org/search.asp?s=archive