Adaptive lifting integer wavelet transform for lossless image compression

被引：6
|
作者：
Kitanovski, V. [1 ]
Kseneman, M. [2 ]
Gleich, D. [2 ]
Taskovski, D. [1 ]
机构：
[1] Univ Ss Cyril & Methodius, Fac Elect Engn & Informat Technol, Karpos 2 Bb, Skopje 1000, North Macedonia
[2] Univ Maribor, Fac Elect Engn & Comp Sci, Maribor 2000, Slovenia
来源：
PROCEEDINGS OF IWSSIP 2008: 15TH INTERNATIONAL CONFERENCE ON SYSTEMS, SIGNALS AND IMAGE PROCESSING | 2008年
关键词：
integer wavelet transform; lifting scheme; lossless image compression;
D O I：
10.1109/IWSSIP.2008.4604378
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents an adaptive lifting scheme for integer-to-integer wavelet transform, and its performance on lossless compression of digital images. We optimize the coefficients of the predict filter to minimize the predictor error variance for every image. The optimized coefficient depends on the variance-normalized autocorrelation function of the image. The proposed lifting scheme adapts not only to every image but also to its horizontal and vertical directions. Experimental results are obtained using different types of images. These results show that the proposed method is competitive to few well-known methods for lossless image compression, in terms of compression ratio and computational efficiency. http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4604378
引用
收藏
页码：105 / +
页数：2
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