Data re-ordering technique for lossless LZW continuous-tone image compression

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Original languageEnglish
Pages (from-to)1716-1717
Journal / PublicationElectronics Letters
Issue number20
Publication statusPublished - Sept 1999


A data re-ordering technique is proposed to enhance the compression performance of lossless LZW image compression over continuous-tone images. The proposed scheme incurs few overheads and functions as a preprocessing stage prior to actual compression. The compression performance is increased by an average of 18% for continuous-tone test images compared with the popular GIF compressor.