A lossless data compression algorithm used in the Graphics Interchange Format (GIF) and optionally used in Tagged Image File Format (TIFF) files. LZW is named after its inventors, Abraham Lempel, Jacob Ziv, and Terry Welch. See also analog, channel, compression, DTE, GIF, link, lossless compression, modem, TIFF, LZ, and LZW.
Stands for Lempel-Ziv-Welch (Algorithm). The authors, Abraham Lempel and Jacob Ziv, presented the algorithm in 1977 as a lossless universal algorithm for sequential data compression. In 1984, Terry Welch improved the algorithm to its present form.
See Also: Compression.