Title :
Lossless Image Compression Based on Integer Wavelet Transform and Context Prediction
Author_Institution :
Sch. of Control & Comput. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
In this paper, we analyze the correlation between wavelet coefficients. In order to use both inter-band and intra-band correlation, we build context prediction model for significance and refinement bits. Combining with sign bit prediction model of JPEG2000, we propose a lossless image compression algorithm. Compression experimental results show that our algorithm outperforms both JPEG2000 and JPEG-LS international standard.
Keywords :
correlation methods; data compression; image coding; wavelet transforms; context prediction; correlation; integer wavelet transform; lossless image compression; sign bit prediction model; wavelet coefficients; Context; Correlation; Image coding; Prediction algorithms; Wavelet coefficients;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601010
