Colormap Construction and Combination Method between Colormaps


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 1, No. 4, pp. 541-550, Nov. 1994
10.3745/KIPSTE.1994.1.4.541,   PDF Download:

Abstract

A true color image is needed many data on the occasion of the transmission and storage. Therefore, we want to describe color image by a minority data without unreasonableness at eyesight. In this paper, it is presented 256 colormap construction method in RGB, YIQ/YUV space and common colormap expression method at merge between colormaps by reason of dissimilar orginal color image to display at a monitor for each other colormap at the same time Incomparison with processed result in RGB, YIQ/YUV space, it was measured by PSNR, standard variation, and edge preservation rate using sobel operator. Process time is 3second in colormap construction and 2second in merge between colormaps. In the PSNR value, RGB space has higher 0.15, 0.34 on an average than YIQ and YUV space. But in the data compression, YIQ/YUV space have about 1/3 compression efficiency than RGB space by reason of use to only 4bit of 8bit in color component.


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Cite this article
[IEEE Style]
K. J. Hong, J. C. Hoy, K. D. Young, "Colormap Construction and Combination Method between Colormaps," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 1, no. 4, pp. 541-550, 1994. DOI: 10.3745/KIPSTE.1994.1.4.541.

[ACM Style]
Kim Jin Hong, Jo Chul Hoy, and Kim Doo Young. 1994. Colormap Construction and Combination Method between Colormaps. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 1, 4, (1994), 541-550. DOI: 10.3745/KIPSTE.1994.1.4.541.