Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/90243
Title: Mathematics and practice of color space invariants by the example of determining the gray balance for a digital printing system
Authors: Tarasov, D. A.
Milder, O. B.
Issue Date: 2020
Publisher: Institution of Russian Academy of Sciences
Citation: Tarasov, D. A. Mathematics and practice of color space invariants by the example of determining the gray balance for a digital printing system / D. A. Tarasov, O. B. Milder. — DOI 10.18287/2412-6179-CO-580 // Computer Optics. — 2020. — Vol. 1. — Iss. 44. — P. 117-126.
Abstract: In modern printing, a large number of tasks are associated with the mutual transformation of color spaces. In particular, the most common pair of hardware-dependent color spaces is RGB and CMYK, the mutual transformation of colors in which is ambiguous, which creates significant problems in color reproduction. To solve this problem, we propose using color space invariants — gradation trajectories and gradation surfaces, which are analogs of gradation curves for initial col-orants and their binary overlays, constructed in the absolute color space of the CIE Lab. Invariants are introduced on the basis of the mathematical apparatus of the differential geometry of spatial curves and surfaces. Practical application of color space invariants involves certain difficulties associated with their complex analytical description; moreover, for most practical problems, the high accuracy of the model is redundant. For the practical application of invariants, we propose a simpler approach using natural color sampling in digital printing systems. As an example, the procedure for determining the gray balance for an electrophotographic printing press is given. © 2020, Institution of Russian Academy of Sciences. All rights reserved.
Keywords: DIGITAL PRINTING
GRADATION SURFACES
GRADATION TRAJECTORIES
GREY BALANCE
CELL PROLIFERATION
DIGITAL PRINTING
GEOMETRY
PRINTING PRESSES
ANALYTICAL DESCRIPTION
COLOR REPRODUCTION
DIFFERENTIAL GEOMETRY
DIGITAL PRINTING SYSTEM
ELECTROPHOTOGRAPHIC PRINTING
MATHEMATICAL APPARATUS
MUTUAL TRANSFORMATIONS
PRACTICAL PROBLEMS
COLOR
URI: http://elar.urfu.ru/handle/10995/90243
Access: info:eu-repo/semantics/openAccess
cc-by
RSCI ID: 42709515
SCOPUS ID: 85082142525
WOS ID: 000520038900015
PURE ID: 12438390
ISSN: 0134-2452
DOI: 10.18287/2412-6179-CO-580
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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