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Journal of Electronic Imaging

Progressive transmission of color-mapped images
Author(s): Wai-Yin Ng; TszWai Lau; L. M. Kwong
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Paper Abstract

Coded as conventional color-map addresses, a color-mapped image can be decoded only when a full color map address is available. We present the first known scheme that adds progression capability in spatial resolution as well as color resolution, enabling more flexible progression of color-mapped images. During coding, approximate pixel colors are keyed with truncated versions of the original color-map addresses. Subsequently, the coded image is transmitted by interleaving the per pixel address bit order for color resolution refinement, and a spatial pixel order for spatial resolution refinement. The interleaving is subject to user control through spatial-color progression rate control (SCPRC), a novel means for biasing the progression to accelerate either spatial resolution or color resolution for more informative early views of the image being transmitted.

Paper Details

Date Published: 1 July 2005
PDF: 12 pages
J. Electron. Imaging. 14(3) 033013 doi: 10.1117/1.1994874
Published in: Journal of Electronic Imaging Volume 14, Issue 3
Show Author Affiliations
Wai-Yin Ng, The Chinese Univ. of Hong Kong (Hong Kong China)
TszWai Lau, The Univ. of Hong Kong (Hong Kong China)
L. M. Kwong, The Chinese Univ. of Hong Kong (Hong Kong China)


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