Department of Electrical and Electronics Engineering2024-11-1020030923-596510.1016/S0923-5965(03)00023-72-s2.0-0037840621http://dx.doi.org/10.1016/S0923-5965(03)00023-7https://hdl.handle.net/20.500.14288/16990A level-embedded lossless compression method for continuous-tone still images is presented. Level (bit-plane) scalability is achieved by separating the image into two layers before compression and excellent compression performance is obtained by exploiting both spatial and inter-level correlations. A comparison of the proposed scheme with a number of scalable and non-scalable lossless image compression algorithms is performed to benchmark its performance. The results indicate that the level-embedded compression incurs only a small penalty in compression efficiency over non-scalable lossless compression, while offering the significant benefit of level-scalability.Electrical electronic engineeringJournal Article183501200003Q28394