Embedded color image coding using context-modeled wavelet difference reduction

Author

Yuan, Yufei ; Mandal, Mrinal K.

Author_Institution

Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada

Volume

3

fYear

2004

fDate

17-21 May 2004

Abstract

A novel embedded wavelet coding algorithm for color image and video compression is proposed. A color image is first represented in YUV color space. The discrete wavelet transform of each of the three color components is then calculated separately. The luminance component is compressed with context-modeled wavelet difference reduction (CM-WDR). The chrominance components are compressed using the contextual information obtained during the coding of the luminance component. Our experimental results show that the proposed algorithm performs better than two latest wavelet-based benchmark schemes, namely CEZW and JPEG2000, in terms of color SNR and component PSNR.

Keywords

data compression; discrete wavelet transforms; embedded systems; image coding; image colour analysis; transform coding; video coding; JPEG-2000; YUV color space; chrominance components; color SNR; color image compression; color video compression; component PSNR; context-modeled wavelet difference reduction; contextual information; discrete wavelet transform; embedded color image coding; embedded wavelet coding; luminance component; Color; Decorrelation; Discrete wavelet transforms; Embedded computing; Encoding; Gray-scale; Image coding; Process control; Video compression; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1326481

Filename

1326481