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Proceedings Paper

A new weight factor spectrophotometric computer color matching
Author(s): Dongcao Song; Xichang Wang; Yanjun Gong; Shangming Yang; Fangying Liang
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Paper Abstract

On the basis of spectrophotometric color matching, the color difference weight factor is proposed and used in the thesis. The weight factor can be expressed as ωj = {{[(x(λj)]2 + [y(λj)]2 + [z(λj)]2}[S(λj)]2}½ and obtained according to the assumption of Σj(ΔXj)2+(ΔYj)2+(ΔZj)2 -> min, i. e., in the range of visible spectrum it is assumed that the square sum of tri-stimulus value deviation produced by spectrum deviation at each wavelength is minimal.Through comparison with spectrophotometric color matching, we find a new weight factor. The new factor multiplied by the variety of reflectivity is the color difference, which is cause by the difference of reflectivity between standard color and matching color. So we name the weight factor: color difference weight factor. The prediction of computer shows the color difference produced by the weight factor is smaller than that produced by the two weight factors which were designed by Schmid and Strockash.

Paper Details

Date Published: 8 February 2005
PDF: 5 pages
Proc. SPIE 5637, Electronic Imaging and Multimedia Technology IV, (8 February 2005); doi: 10.1117/12.573777
Show Author Affiliations
Dongcao Song, Yantai Univ. (China)
Xichang Wang, Yantai Univ. (China)
Yanjun Gong, Yantai Univ. (China)
Xidian Univ. (China)
Shangming Yang, Yantai Univ. (China)
Fangying Liang, Yantai Univ. (China)


Published in SPIE Proceedings Vol. 5637:
Electronic Imaging and Multimedia Technology IV
Chung-Sheng Li; Minerva M. Yeung, Editor(s)

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