Title :
An Image Compression Approach Based on IWT and Grey Prediction
Author :
Sun, Ziguang ; Zhang, Zengfang ; Li, Chungui ; Wang, Qin
Author_Institution :
Dept. of Comput. Eng., Guangxi Univ. of Technol., Liuzhou, China
Abstract :
A progressive image compression approach based on integer wavelet transform (IWT) and grey prediction is proposed. The compression approach is combining the EZW method and a grey prediction to compress images. IWT adopts lifting scheme and the grey prediction is based on the grey theory to further improve the compression rate without degrading the image quality. Experiments show that the proposed approach has better performance.
Keywords :
data compression; grey systems; image coding; trees (mathematics); wavelet transforms; EZW method; IWT; embedded zerotree coding; grey prediction; image compression approach; image quality; integer wavelet transform; Degradation; Discrete wavelet transforms; Equations; Flowcharts; Frequency; Image coding; Sun; Wavelet coefficients; Wavelet domain; Wavelet transforms; EZW; grey prediction; image compression; integer wavelet transform;
Conference_Titel :
Information Engineering, 2009. ICIE '09. WASE International Conference on
Conference_Location :
Taiyuan, Shanxi
Print_ISBN :
978-0-7695-3679-8
DOI :
10.1109/ICIE.2009.105
