Compression

• Computers: Data Formats: Graphics: 2D: GIF  (9)
• Computers: Data Formats: Graphics: 2D: JPEG  (6)
• Computers: Data Formats: Graphics: 2D: PNG  (12)
• Computers: Multimedia: MPEG  (33)
• Computers: Multimedia: Music and Audio: Audio Formats  (443)
• Computers: Software: Data Compression  (37)
• Science: Math: Applications: Communication Theory: Coding Theory  (83)
• Science: Math: Numerical Analysis: Wavelets  (84)
• Science: Technology: Electrical Engineering: Image Processing: Data Coding and Compression  (1)

ACM Crossroads Data Compression Issue - Data Compression issue of ACM Crossroads, the student magazine of the Association for Computing Machinery.

The Art of Lossless Data Compression - Results of tests performed to compare lossless compression of various data by all known good enough programs. Descriptions of test terms and files. Links to related programs, and pages.

Arturo Campos: Compression Programming - Articles on various compression algorithms.

The Canterbury Corpus - A set of benchmark results for various lossless compression methods. Includes test files and compression test results for many research compression methods.

comp.compression Frequently Asked Questions - List from Usenet.

Compression - Computing Reference - Explanation of compression and various compression schemes at eLook Computing Reference.

Compression via Arithmetic Coding in Java - Unrestricted open-source Java implementation of the PPM (prediction by partial matching) algorithm for text and data compression by Bob Carpenter. Builds with ant.

3D Graphics Compression Homepage - A directory of 3D graphics compression information, researchers, and commercial products on the web.

Data Compression - From PC Webopedia definition and links.

Data Compression Reference Center - Basic facts, algorithms, hardware, links, and a glossary.

The Data Compression Resource - Algorithms, links, comparisons, conferences, corpora and the home of the compressor ABC.

Data-Compression.com - A website devoted to the principles and practice of data compression.

DataCompression.info - Directory of data compression sites. Allows user to rate the listed sites.

Dr Ross's Compression Crypt - LZRW* text compression algorithms. Links to other compression sites.

How Stuff Works: How File Compression Works - Detailed narrative fully describes how a file is actually deflated, or compressed to get rid of redundancy - and save space.

The LBE Data Compression Algorithm - A Huffman like algorithm that uses triangular matrices, rather than binary trees, for string substitution. Free source code available.

MacKiDo - Provides brief overview of shape compression, run-length encoding, and Lempel-Ziv.

Mitsuharu Arimura's Data Compression Pointers - Very large list of links, including books and lecture notes, benchmarkings, archives, image/graphic compression, fractal compression, wavelets, video and audio compression, and links to other link lists.

PKZIP Application Note - Describes the compression and decompression algorithms used by PKZIP.

Practical Huffman Coding - A tutorial by Michael Schindler.

Sparse Matrix Compression Schemes - Pseudocode for a spare matrix compression algorithm.

SPIHT - The Set Partitioning In Hierarchical Trees algorithm for image and video compression. Documentation and resources.

Tutorial on Image Compression - A tutorial on Image Compression, with step by step procedural examples and list of references, along with sample code.

Vcodex - Video and image coding tutorials, links, resources and research.