Lossless Image Compression Based on Integer Wavelet Transform and Context Prediction

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.