Lempel Ziv Welch compression and decompression

In this article, we will learn about the Lempel Ziv Welch compression and decompression algorithm, a famous compression technique that is widely used in Unix systems and GIF format files.

Note that Lempel Ziv Welch algorithm was (USPTO) patented in 1985 by the company Unisys. The patent rights were not enforced but later, royalties were collected. It reduced the popularity of GIF at that time provided an alternative (PNG) was ready.

Table of content:

Introduction to Lempel Ziv Welch algorithmA...