Lossless image compression via bit-plane separation and multilayer context tree modeling

Alexey Podlasov; Pasi Franti

doi:10.1117/1.2388255

1 October 2006 Lossless image compression via bit-plane separation and multilayer context tree modeling

Alexey Podlasov, Pasi Franti

Author Affiliations +

Journal of Electronic Imaging, Vol. 15, Issue 4, 043009 (October 2006). https://doi.org/10.1117/1.2388255

Abstract

Color separation and highly optimized context tree modeling for binary layers have provided the best compression results for color map images that consist of highly complex spatial structures but only a relatively few number of colors. We explore whether this kind of approach works on photographic and palette images as well. The main difficulty is that these images can have a much higher number of colors, and it is therefore much more difficult to exploit spatial dependencies via binary layers. The original contributions of this work include: 1. the application of context-tree-based compression (previously designed for map images) to natural and color palette images; 2. the consideration of four different methods for bit-plane separation; and 3. Extension of the two-layer context to a multilayer context for better utilization of the crosslayer correlations. The proposed combination is extensively compared to state of the art lossless image compression methods.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Alexey Podlasov and Pasi Franti "Lossless image compression via bit-plane separation and multilayer context tree modeling," Journal of Electronic Imaging 15(4), 043009 (1 October 2006). https://doi.org/10.1117/1.2388255

Published: 1 October 2006

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