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Proceedings Paper

Development of multispectral scanner by using LEDs array for digital color proof
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Paper Abstract

We developed a multi-spectral scanner by using LEDs array with different spectral radiant distribution to measure high accuracy spectral characteristics of printing proof. Five kinds of LEDs were selected from the combination of 40 LEDs on the market to minimize the color difference ΔE*94 between measured and estimated reflectance spectra of 81 kinds of color charts by using polynomial regression and clustering methods. Reflectance spectra of 928 color charts were measured and estimated by using the scanner and the Wiener estimation method. As a result, average color difference ΔE*94 was 1.23 when 81 color data were used to calculate the Wiener estimation matrix.

Paper Details

Date Published: 17 January 2005
PDF: 8 pages
Proc. SPIE 5668, Image Quality and System Performance II, (17 January 2005); doi: 10.1117/12.585692
Show Author Affiliations
Shouji Yamamoto, Chiba Univ. (Japan)
Norimichi Tsumura, Chiba Univ. (Japan)
Toshiya Nakaguchi, Chiba Univ. (Japan)
Yoichi Miyake, Chiba Univ. (Japan)

Published in SPIE Proceedings Vol. 5668:
Image Quality and System Performance II
Rene Rasmussen; Yoichi Miyake, Editor(s)

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