Back to articles
Articles
Volume: 11 | Article ID: art00048
Image
A Multi-Ink Color-Separation Algorithm Maximizing Color Constancy
Yongda Chen
Roy S. Berns
Lawrence A. Taplin
Francisco H. Imai
  DOI :  10.2352/CIC.2003.11.1.art00048  Published Online :  January 2003
Abstract

Current color-printing technologies may use three or more inks, e.g., CMY, CMYK, CMYKcm, CMYKGO, CMYKRGB. When the number of inks exceeds three, there is the usual color-management one-to-many mapping problem. Because the spectral properties of many modern inks are optimized for maximum color gamut and in some cases, black ink may not be used for pictorial images, many prints have poor color constancy. Changes in lighting dramatically change color balance, particularly for neutrals. An algorithm was developed for multi-ink printing in which the one-to-many mapping problem was overcome by selecting ink combinations with the best color constancy between illuminants F11 and D50. The algorithm was tested using a pigmented-ink inkjet proofing printer. CMYKGO prints color-separated using this algorithm were compared with a generic ICC profile for CMYKcm prints. The CMYK inks were common to both prints. The new algorithm improved color constancy significantly.

Journal Title : Color and Imaging Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
Subject Areas :
Views 12
Downloads 0
 DOI 10.2352/CIC.2003.11.1.art00048
 articleview.views 12
 articleview.downloads 0
  Cite this article 

Yongda Chen, Roy S. Berns, Lawrence A. Taplin, Francisco H. Imai, "A Multi-Ink Color-Separation Algorithm Maximizing Color Constancy"  in Proc. IS&T 11th Color and Imaging Conf.,  2003,  pp 277 - 281,  https://doi.org/10.2352/CIC.2003.11.1.art00048

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2003
72010350
Color and Imaging Conference
color imaging conf
2166-9635
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2166-9635(20030101)2003:1L.277;1-
cic_v2003n1/splitsection48.xml
/ist/cic/2003/00002003/00000001/art00048
Articles
A Multi-Ink Color-Separation Algorithm Maximizing Color Constancy
ChenYongda
BernsRoy S.
TaplinLawrence A.
ImaiFrancisco H.
01012003
2003
1
277
281
2003
Current color-printing technologies may use three or more inks, e.g., CMY, CMYK, CMYKcm, CMYKGO, CMYKRGB. When the number of inks exceeds three, there is the usual color-management one-to-many mapping problem. Because the spectral properties of many modern inks are optimized for maximum color gamut and in some cases, black ink may not be used for pictorial images, many prints have poor color constancy. Changes in lighting dramatically change color balance, particularly for neutrals. An algorithm was developed for multi-ink printing in which the one-to-many mapping problem was overcome by selecting ink combinations with the best color constancy between illuminants F11 and D50. The algorithm was tested using a pigmented-ink inkjet proofing printer. CMYKGO prints color-separated using this algorithm were compared with a generic ICC profile for CMYKcm prints. The CMYK inks were common to both prints. The new algorithm improved color constancy significantly.