Data re-ordering technique for lossless LZW continuous-tone imagecompression |
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| Authors: | Ng KS Cheng LM |
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| Affiliation: | Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon; |
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| Abstract: | 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 |
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