Progressive transmission of color-mapped images

Wai-Yin Ng; TszWai Lau; L. M. Kwong

doi:10.1117/1.1994874

1 July 2005 Progressive transmission of color-mapped images

Wai-Yin Ng, TszWai Lau, L. M. Kwong

Author Affiliations +

Journal of Electronic Imaging, Vol. 14, Issue 3, 033013 (July 2005). https://doi.org/10.1117/1.1994874

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.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Wai-Yin Ng, TszWai Lau, and L. M. Kwong "Progressive transmission of color-mapped images," Journal of Electronic Imaging 14(3), 033013 (1 July 2005). https://doi.org/10.1117/1.1994874

Published: 1 July 2005

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