Embedded color image coding with context adaptive wavelet difference reduction

A new color image coding technique is proposed in this paper. The technique is based on the efficient grey-scaled wavelet-based image coding, the context adaptive wavelet difference reduction - CAWDR. The coder exploits not only compactness and self-similarities of wavelet transform in each color co...

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Bibliographic Details
Published in2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) pp. 347 - 350
Main Authors Lamsrichan, P., Sanguankotchakorn, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
Adaptive signal processing
Arithmetic
Color
Color image coding
Context
context adaptive
embedded coding
Image coding
PSNR
Quantization
Streaming media
Transform coding
wavelet difference reduction
Wavelet transforms
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Summary:A new color image coding technique is proposed in this paper. The technique is based on the efficient grey-scaled wavelet-based image coding, the context adaptive wavelet difference reduction - CAWDR. The coder exploits not only compactness and self-similarities of wavelet transform in each color component, but also the dependency between the color components. The context adaptive arithmetic coder is implemented to the encoded bit stream. The significant coefficient quantizations for all color components are performed before the refinement pass in each bit-plane. This single bit stream of encoded image has embedded property and exact rate control without explicit information. The performance comparison is also presented in the paper. The proposed coder typically has 0.3 - 1 dB higher average PSNR than that of JPEG2000.
ISBN:9781424450152
1424450152
DOI:10.1109/ISPACS.2009.5383829