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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 2 — Feb. 1, 2001
  • pp: 360–366

Light scattering and ink penetration effects on tone reproduction

Li Yang, Reiner Lenz, and Björn Kruse  »View Author Affiliations


JOSA A, Vol. 18, Issue 2, pp. 360-366 (2001)
http://dx.doi.org/10.1364/JOSAA.18.000360


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Abstract

Light scattering, or the so-called Yule–Nielsen effect, and ink penetration into the substrate paper play important roles in tone reproduction. We develop a framework in which the influences of both of these effects on the reflectance and tristimulus values of a halftone sample are investigated. The properties of the paper and the ink and their bilateral interaction can be parameterized by the reflectance Rp0 of the substrate paper, the transmittance Ti of the ink layer, the parameter γ describing the ink penetration, and p¯ describing the Yule–Nielsen effect. We derive explicit expressions that relate the reflectance of the ink dots (Ri), the paper (Rp) and the halftone image (R) as functions of these parameters. We also describe the optical dot gain as a function of these parameters. We further demonstrate that ink penetration leads to a decrease in optical dot gain and that scattering in the paper results in the printed image’s being viewed as more saturated in color.

© 2001 Optical Society of America

OCIS Codes
(290.7050) Scattering : Turbid media

History
Original Manuscript: November 23, 1999
Revised Manuscript: June 22, 2000
Manuscript Accepted: June 22, 2000
Published: February 1, 2001

Citation
Li Yang, Reiner Lenz, and Björn Kruse, "Light scattering and ink penetration effects on tone reproduction," J. Opt. Soc. Am. A 18, 360-366 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-2-360

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