Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326481
