Archives
ZipCracker
A program that will help you figure out that zip password that you just can’t seem to recall. In a tarball.
http://zipcracker.sourceforge.net/ACM Crossroads Spring 2000 Issue - Data Compression
Crossroads is the student publication of the ACM. This issue concentrates on data compression, and includes several very worthwhile articles.
http://www.acm.org/crossroads/xrds6-3/xrds6-3.htmlread more from " ACM Crossroads Spring 2000 Issue - Data Compression "
Java I/O and Comrpession by Matt Tucker
An article from the ACM Crossroads student publication. This article shows how to use some of the built-in classes in the JDK to create and access compressed files and streams.
http://www.acm.org/crossroads/xrds6-3/ovp63.htmlAn Error-Controlled Octree Data Structure for Large-Scale Visualization
An article in the Spring 2K issue of Crossroads, the ACM student publication.
http://www.acm.org/crossroads/xrds6-3/lsv_oct.htmlread more from " An Error-Controlled Octree Data Structure for Large-Scale Visualization "
Prefix Compression of Sparse Binary Strings
by David Salomon. This article discusses an approach to the unique problem of compression sparse binary strings.
http://www.acm.org/crossroads/xrds6-3/prefix.htmlread more from " Prefix Compression of Sparse Binary Strings "
Image Compression - from DCT to Wavelets : A Review
by Subhasis Saha. A survey paper on various techniques of image compression.
http://www.acm.org/crossroads/xrds6-3/sahaimgcoding.htmlread more from " Image Compression - from DCT to Wavelets : A Review "
Efficient Quadtree Code: Spatial Linear Quadtree
Laurent Balmelli from the neutral country of Switzerland has some C++ code to do some interesting quadtree processing. He would like you register if you are going to use the code, but this is not mandatory. This code is being used by over 100 registered users, and has at least been accessed by as many […]
http://lcavwww.epfl.ch/~balmelli/software/quadtree/index.htmlread more from " Efficient Quadtree Code: Spatial Linear Quadtree "
Mary Holly Johnson’s source code
Mary Holly Johnson wrote a couple of papers on something called ECVQ, which I’m guessing is a type of vector quantization. This ftp directory has a bunch of C code that probably implements the code from one or more of her papers.
ftp://isdl.ee.washington.edu/pub/VQ/mhjohns/Solution-Soft
Solution-Soft is the provider of software for online archiving and for bandwidth management in the Internet infrastructure and the enterprise. Solution-Soft’s products enable data files to be archived online and transferred faster over networks through a revolutionary technology providing transparent compression and decompression.
http://www.solution-soft.com/Pentamedia
Among other things, these folks make a MPEG 1/2 A/V encoder board for your PC. As an added bonus, their site comes in English, Spanish, and Korean versions.
http://www.pentamedia.com/Toshiba VideoPhone MPEG-4 IC
Toshiba announces silicon suitable for building an MPEG-4 based videophone. Pretty nice looking piece of work, shipping in Q42K.
http://www.toshiba.com/taec/press/to-064.shtmlThe XYZ Algorithm For Real-Time Compression of Full-Motion Video
A new DCT based moving pictures compression algorithm. The authors claim results far superior to that of MPEG.
Note: this paper will cost you $35.00. Abstract only is free.
http://www.idealibrary.com/links/artid/rtim.1996.0003read more from " The XYZ Algorithm For Real-Time Compression of Full-Motion Video "
ZipFree 2000!
Another free Win32 Zip program.
http://www.pepsoft.com/zipfree/intro.htmlACE file Format
An explanation of the ACE file format.
http://DataCompression.info/ArchiveFormats/ACE.txtDWC File Format
An explanation of the archaic DWC file format.
http://DataCompression.info/ArchiveFormats/dwc.txtRAR 2.00 File Format
Wotsit’s explanation of the RAR 2.00 file format
http://DataCompression.info/ArchiveFormats/rar_2.txtARC File Format Specification
A description of the ARC file format
http://DataCompression.info/ArchiveFormats/arc.txtGZIP File Format
Peter Deutsch’s description of the GZIP file format.
http://DataCompression.info/ArchiveFormats/gzip.txtHA File Format
A description of the HA file format.
http://DataCompression.info/ArchiveFormats/ha.txtJAR File Format
Wotsit’s description of the JAR file format. Robert Jung’s JAR format, not the JAR format used to distribute Java classes.
http://DataCompression.info/ArchiveFormats/jar.txtRAR File Format
A description of the RAR 2.02 file format. Short description without any source code.
http://DataCompression.info/ArchiveFormats/RAR202.txtSQZ File Format
Documentation on the ancient SQZ file format.
http://DataCompression.info/ArchiveFormats/sqz.txtTAR File Format
Wotsit’s explanation of the TAR file format.
http://DataCompression.info/ArchiveFormats/tar.txtZip File Format
Wotsit’s explanation of the PKWare zip file format. This appears to be the same documentation that shows up in the PKWare appnote document.
http://DataCompression.info/ArchiveFormats/zip.txtFree MPEG Software!
Lots of links to free software from the MPEG Simulation Group.
http://www.mpeg.org/MPEG/MSSG/MPEG-2 Video Decoder
An MPEG-2 Video Decoder from the MPEG Software Simulation Group at Berkeley.
ftp://mm-ftp.cs.berkeley.edu/pub/mpeg2/software/Netzip 7.5
The family of Netzip archiving programs seem to have a good set of features and have received good reviews when compared to WinZip and PKZip for Windows. NetZip 7.5 adds some flashy new features, including skins!
http://www.netzip.com/products/Info_Netzip_Win.htmlNuLib Home Page
NuLib is a program for the Apple II which manipulates NuFx archives. The page is also the distribution site for NuLib2, and improved version of the program, and NufxLib, a programming library.
http://www.nulib.com/KeyCHW: A Compression Utility for MSDN
A console mode program that compresses CHW files. This is the type of file used in some help files distributed for Windows applications.
http://www.codeproject.com/tips/KeyCHW.aspLurawave SmartCompress
This is a freeware image compressor that does wavelet based compression. Lurawave appears to have all their products and documentation available in German language as well as English. In order to establish their products they are making much of it available as freeware.
http://www.algovisionluratech.com/products/lurawave/smart_compress/index.jsp?OnlineShopId=592271037471970327