Projects tagged ‘compression’ and ‘zlib’

gzip (GNU zip) is a compression utility designed to be a replacement for compress. Its main advantages over compress are much better compression and freedom from patented algorithms. It has been ... [More] adopted by the GNU project and is now relatively popular on the Internet. [Less]

libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 14 years. libpng is available as ANSI C source code and ... [More] requires zlib 1.0.4 or later (1.2.3 or 1.1.4 recommended due to potential security vulnerabilities in earlier versions). In addition to the main library sources, libpng includes the rpng, rpng2 and wpng demo programs, the pngminus demo program, a subset of Willem van Schaik's PngSuite test images, and Willem's VisualPng demo program. [Less]

zlib is designed to be a free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and ... [More] operating system. The zlib data format is itself portable across platforms. Unlike the LZW compression method used in Unix compress(1) and in the GIF image format, the compression method currently used in zlib essentially never expands the data. (LZW can double or triple the file size in extreme cases.) zlib's memory footprint is also independent of the input data and can be reduced, if necessary, at some cost in compression. [Less]

Compression and decompression in the gzip and zlib formats for Haskell

This is an optimizer for PNG files; it also has the ability to add or delete ancillary PNG chunks. It attempts to reduce the PNG file size by trying various compression methods and selecting the best-performing one.

ZLib 1.2.3 wrapper for Delphi language. It works on latest Delphi 2010 too.

The implementation of RFC 1951 -- DEFLATE Compressed Data Format Specification version 1.3 (also RFC 1950 ZLIB and 1952 GZIP). It's written in managed C#. The project has basic compression algorithm implementation as it's described in the RFC.

ARX is a archiving file format with advanced features especially designed to meet the requirements of game designers. These features include external data referencing, data synchronization with remote ... [More] data storages, in-memory merging of multiple archives and arbitrary data items structuring. This report includes commits to the sub projects libarxx and arxtools. [Less]