Sub-block interchange for lossless image compression

被引：4
|
作者：
Ng, KS [1 ]
Cheng, LM [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, SAR Hong Kong, Peoples R China
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 1999年 / 45卷 / 01期
关键词：
D O I：
10.1109/30.754441
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Lempel-Ziv-Welch (LZW) technique for text compression has been successfully modified to lossless image compression such as GIF. Recently, a new class of text compression, namely, Burrows and Wheeler Transformation (BWT) has been developed which gives promising results for text compression. Here, we propose a sub-block interchange lossless compression method which belongs to this block sorting class. Our compression results have outperformed GIF in compression ratios and BWT in compression times when tested with 512x512 pixel 8-bit grey scale images. The comparison of compression ratios and times with GIF, BWT and other popular LZ based compression methods are discussed.
引用
收藏
页码：236 / 242
页数：7
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