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Method of Lossless Image Compression Using Hybrid Bitplane Coding  

Moon, Young-Ho (삼성전자 주식회사, DMC연구소)
Choi, Jong-Bum (삼성전자 주식회사, DMC연구소)
Sim, Woo-Sung (삼성전자 주식회사, DMC연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.10C, 2009 , pp. 961-967 More about this Journal
Abstract
In this paper, the lossless compression method is proposed for an 8-bit bitplane of the input image. The lower bitplanes are not well compressed because of irregularity of pixels. To overcome these drawbacks, this paper propose a mixed coding method that using the block-based lossless compression and the bit-based losselss compression, introducing the H. 264 and the JBIG. First, to take advantage of the characteristics of the bitplanes, 8-bitplane against the top 4 bits and lower 4 bits were separated. Next, the JBIG compression method was used in separated top 4-bitplane because of a lot of correlation between bits. And a separated lower 4-bitplane was applied the improved method that using the H. 264 lossless prediction. A pre-processing method applied to the lower 4-bitplane then irregular distribution of pixel values are converted to regular. Using the proposed method to test for various test images were performed. Experimental results from a printer using 8-bit image compared to JBIG average 19%, lower 4bit image compression performance with an average of 11% could be obtained.
Keywords
Lossless Image Codec; Pre-Processing; Intra Prediction; Bitplane; H. 264;
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