Archives
LHA Source code site
FTP site that contains LHA source code. Most of this page is in Japanese.
ftp://ftp.vector.co.jp/pack/dos/util/arc/lha/LIMIT version 1.2 — Data Compression/rchive utility
LIMIT is a fast and compact data compressor/archiver. The compression and decompression routines have been written entirely in 80286 assembly, so it runs faster than many other archivers. LIMIT also compresses better than other archivers; it uses a compression method based on 32K sliding window dictionary plus huffman encoding, similar to LHA/PKZIP/ARJ, but with some […]
ftp://garbo.uwasa.fi/pc/arcers/limit12.zipread more from " LIMIT version 1.2 — Data Compression/rchive utility "
SCRNCH
SCRNCH is a data compressor designed for people, such as software developers, who need to send programs or files to a large number of people cheaply. It provides a high degree of compression and the ability to customize the self-extracting compressed file. SCRNCH takes its time to produce optimal compression, but decompression is automatic […]
ftp://garbo.uwasa.fi/pc/arcers/scrnch02.zipUnzip 5.32 - 16 bit Intel executables
UnZip is an extraction utility for archives compressed in .zip format (also
called “zipfiles”). Although highly compatible both with PKWARE’s PKZIP
and PKUNZIP utilities for MS-DOS and with Info-ZIP’s own Zip program, our
primary objectives have been portability and non-MSDOS functionality.
The JPEG Playground
This site looks like it got started but never completed
http://mu.org/~jimmy/jpeg_tests/testgrnd.htmAnnouncing XWPL, the X Wavelet Packet Laboratory
XWPL is an X based tool to examine one-dimensional real-valued signals using
wavelets and wavelet packets. It has been designed to be as easy to use as
possible for beginners. It is intended more as an educational and exploratory
tool than as a numerical analysis program, even though it uses fast, optimized
wavelet and wavelet packet transforms. […]
read more from " Announcing XWPL, the X Wavelet Packet Laboratory "
Wavelet Resources - Yale
Links from the Yale Computational Mathematics Group. Contains links to software and papers. Most of the links don’t show up in this database as they are not necessarily related to using wavelets for data compression.The papers that appear off this page are all compressed postscript and have not been added to the database.
http://www.math.yale.edu/wavelets/Yleisimpiä kuvanpakkausmenetelmiä ja niiden vertailua
This appears to be an overview of various data compression methods applied to image compression, both lossy and lossless. The page is entirely in what appears to be Finnish.
http://www.hut.fi/~pemakela/courses/maa-57.351/compressing.htmlread more from " Yleisimpiä kuvanpakkausmenetelmiä ja niiden vertailua "
PICTools Imaging Library by Pegasus Imaging
Pegasus Imaging Corporation, Tampa FL.announces the release today of new version of the PICTools imaging libraries for software developers.
http://www.pegasusimaging.com/new_pictools_pr.htmread more from " PICTools Imaging Library by Pegasus Imaging "
EE372 Home Page QUANTIZATION and Data Compression and
A basic syllabus and links giving a wide survey of the field.
http://www.stanford.edu/class/ee372/read more from " EE372 Home Page QUANTIZATION and Data Compression and "
Gordon V. Comack
The email address for Gordon V. Comack, the author of DMC.
mailto:cormack@uwaterloo.caTom Lane
email address for Tom Lane, organizer of the Independent JPEG group, omniscient poster to comp.compression on JPEG issues.
mailto:tgl@netcom.comI need specs for graphics formats
Links found in the comp.compression FAQ that help with this question
http://www.faqs.org/faqs/compression-faq/part1/section-29.htmlJPEGDUMP from Colosseum Builders, Inc.
This application dumps the contents of JPEG blocks in a JFIF file.
http://www.colosseumbuilders.com/Source/jpegdump.zipCompression Basics by Pasi ‘Albert’ Ojala
An introductory paper. Includes information on Huffman coding, Info Theory, Coding, LZ77, LZ78, and more. This page also has a good set of links.
http://www.cs.tut.fi/~albert/Dev/pucrunch/packing.htmlread more from " Compression Basics by Pasi ‘Albert’ Ojala "
Ian H. Witten
Ian H. Witten’s Home Page. I’m Professor of Computer Science here in sunny New Zealand — Department of Computer ScienceUniversity of Waikato, New Zealand
http://www.cs.waikato.ac.nz/~ihw/History of the Portable Network Graphics (PNG) Format
This article originally appeared in the electronic Linux Gazette in January 1997 and was subsequently (re)printed in the April 1997 issue of Linux Journal. The main text is current as of early January 1997, with updates appearing at the very end as Author’s Notes.
http://www.libpng.org/pub/png/pnghist.htmlread more from " History of the Portable Network Graphics (PNG) Format "
Markov Coders
A set of Markov compressors by Charles Bloom, including source code. This includes links to a wide variety of his programs, including Context Coders, List LRU, and DefSum, along with a link to an early paper of his.
http://www.cbloom.com/src/indexppm.htmlFractal Image Compression : Theory and Application
by Yuval Fisher (Editor). Featuring a collection of articles by twelve experts in the field of fractal image compression, this book contains the complete details of how to encode and decode images, offering working codes that are usable in applications. Includes some of the latest results in this field..
If you are interested in buying […]
read more from " Fractal Image Compression : Theory and Application "
Lossless Audio Compression with LTAC
LTAC allows for lossless audio compression of PCM coded audio signals (16 bit), i.e. decoding results bit for bit in the original bit stream of the PCM coded signal. In contrast to LTAC there exist a lot of lossy coding algorithms like MPEG, ATRAC and AC-3, which yield higher compression ratios but in any case […]
http://www.nue.tu-berlin.de/wer/liebchen/ltac.html