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LZW Compression Algorithm Implemented in Java

, 13 Aug 2006
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This article provides an implementation of the LZW compression algorithm in Java

Introduction

I recently had the opportunity to look into compression for a project. I had to implement the Lempel-Ziv-Welch (LZW) algorithm for mobile phones in J2ME but before that, I implemented it in Java for testing purposes.

I wish to thank Mark Nelson for pointing out that the Unisys patent on this algorithm has expired, so there are fewer headaches in the use of this algorithm.

Description

This implementation is actually based on the C version of the implementation by Mark Nelson at http://marknelson.us/1989/10/01/lzw-data-compression/. Please refer to this website for further details about the algorithm. The Java adaptation is designed to work for ASCII encoded text files.

History

  • 13th August, 2006: Initial post

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

fahadkhowaja
Web Developer
Singapore Singapore
No Biography provided

Comments and Discussions

 
QuestionCan you also provide the decompression method Pinmemberpakhtoon18-Nov-07 12:43 
AnswerRe: Can you also provide the decompression method Pinmembermanishaswati30-Aug-08 3:26 
I need decompression code of this compression for lzw in java . i would be very much thankful isanyone can provise me
 
swati
AnswerRe: Can you also provide the decompression method Pinmemberduraigowardhan1-Oct-09 5:05 
QuestionRe: Can you also provide the decompression method Pinmemberskumarmails17-Jan-10 22:47 
AnswerRe: Can you also provide the decompression method Pinmemberguyver.nihilith14-Feb-10 5:24 

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