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Your search keyword '"Color management"' showing total 6 results
Start Over Descriptor "Color management" Journal optical review
6 results on '"Color management"'

1. A new multiple-exposure scheme for full-color full-parallax holographic stereogram.

Author

Yang, Fei, Murakami, Yuri, and Yamaguchi, Masahiro

Subjects
*STEREOGRAMS, *PARALLAX, *HOLOGRAPHY, *PRINTERS (Persons), *COLOR
Abstract

We propose a new multiple-exposure scheme for full-color full-parallax holographic three-dimensional (3D) printer, in which two of three primary-color holograms are exposed at the same location on the recording medium. In this paper, the optimal combinations of colors for multiple exposure are experimentally derived. In addition, it is shown that the proposed method enables higher brightness, better color reproducibility, and high resolution through the experiment of recording and measurement of color-chart holographic stereogram. [ABSTRACT FROM AUTHOR]

Published
2013
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2. An Accurate Characterization of CRT Monitor (II) Proposal for an Extension to CIE Method and Its Verification

Author

Tatsuya Deguchi, Naoya Katoh, and Roy S. Berns

Subjects
Brightness, Normal conditions, Computer science, business.industry, Color management, Atomic and Molecular Physics, and Optics, Display device, law.invention, Transformation matrix, law, Computer graphics (images), RGB color model, Tone reproduction, Computer vision, Artificial intelligence, Colorimetry, business
Abstract

According to the ICC specification that is widely used for storing colorimetric characteristics of imaging devices for the current color management systems (CMSs), CRT monitor characteristics can be described by the tone reproduction curves (TRCs) of the red, green and blue channels and a transformation matrix from linearized RGB values to tristimulus values. This idea is based on CIE Technical Report 122#x2013;1996: #x201C;The Relationship between Digital and Colorimetric Data for Computer-Controlled CRT Displays,#x201D; which resulted from the research by Berns et al. This method produces very accurate results under normal conditions. However, users often change the settings of contrast or brightness knobs to a different position from the factory default adjustments. For some of these cases, the characterization method described in the CIE 122 does not produce accurate results. In this paper, we propose an extension to the CIE method for such cases. We investigated the effect of user controls on CRT monitor characteristics at various settings, and verified that our method produced accurate results under any conditions.

Published
2001

3. An Accurate Characterization of CRT Monitor (I) Verifications of Past Studies and Clarifications of Gamma

Author

Naoya Katoh, Tatsuya Deguchi, and Roy S. Berns

Subjects
Cathode ray tube, business.industry, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Color management, Atomic and Molecular Physics, and Optics, law.invention, Characterization (materials science), Display device, Term (time), law, Tone reproduction, Computer vision, The Internet, Artificial intelligence, business, Communication channel
Abstract

CRT monitors are widely used to view images on the Internet. The color images on the computer graphic display can be printed out or displayed on other monitors through the Internet, and color matching between the original and the reproduction is very important. The color management systems (CMSs) are useful for the color matching. CMSs utilize device profiles, in which color characteristic information is stored, and these profiles are generated by device characterization. Thus, an accurate characterization of the monitor is essential for better color matching. CRT monitor characteristics can be described by the tone reproduction curves (TRCs) of each channel, and color additive matrix. In this paper, these characteristics were investigated from a physical point of view. Various kinds of flare and the interdependence among the channels were also investigated and verified. The definition of the term “gamma” is clarified, which is very often used to describe the TRC. Various definitions are compared and a new definition of S-γ is proposed.

Published
2001

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