Results 271 to 280 of about 13,653 (313)
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Color rainbow hologram and color reproduction
Applied Optics, 1988A new method that uses color separation and an achromatic holographic stereogram to reconstruct a natural color image is proposed and described. Three primaries for tone reproduction are decided by the relative spectral distribution of a reconstructed image from a bleached hologram illuminated by a halogen lamp.
K, Ohnuma, F, Iwata
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Edge‐colorings avoiding rainbow stars
Journal of Graph Theory, 2017AbstractWe consider an extremal problem motivated by a article of Balogh [J. Balogh, A remark on the number of edge colorings of graphs, European Journal of Combinatorics 27, 2006, 565–573], who considered edge‐colorings of graphs avoiding fixed subgraphs with a prescribed coloring.
Carlos Hoppen +3 more
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Journal of Graph Theory, 1993
AbstractWe prove that for d ≥ 4, d ≠ 5, the edges of the d‐dimensional cube can be colored by d colors so that all quadrangles have four distinct colors. © 1993 John Wiley & Sons, Inc.
Faudree, R. J. +3 more
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AbstractWe prove that for d ≥ 4, d ≠ 5, the edges of the d‐dimensional cube can be colored by d colors so that all quadrangles have four distinct colors. © 1993 John Wiley & Sons, Inc.
Faudree, R. J. +3 more
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Simulating rainbows and halos in color
Applied Optics, 1993Monte Carlo simulations of halos have helped confirm the precise mechanism leading to a number of the unusual arcs.
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Rainbow Color Map (Still) Considered Harmful
IEEE Computer Graphics and Applications, 2007In this article, we reiterate the characteristics that make the rainbow color map a poor choice, provide examples that clearly illustrate these deficiencies even on simple data sets, and recommend better color maps for several categories of display.
David, Borland, M Russell, Taylor
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Colored Saturation Parameters for Rainbow Subgraphs
Journal of Graph Theory, 2017AbstractInspired by a 1987 result of Hanson and Toft [Edge‐colored saturated graphs, J Graph Theory 11 (1987), 191–196] and several recent results, we consider the following saturation problem for edge‐colored graphs. An edge‐coloring of a graph F is rainbow if every edge of F receives a different color. Let denote the set of rainbow‐colored copies of
Barrus, Michael D. +3 more
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Rethinking the Rainbow’s Colors
Light and Color in the Open Air, 1990For most of us, the phrase "all the colors of the rainbow" conjures an image of the natural rainbow1 as a paragon of color variety and vividness. Indeed, both our language and art often invoke the rainbow as a color palette without peer.2 Yet as a color standard, the rainbow has an oddly contentious history.
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Color blur of the rainbow hologram
Applied Optics, 1978The color blur of the rainbow hologram is calculated from first-order holographic theory. The result is applicable to most of the rainbow holographic processes, including the one-step recording technique. Horizontal color blur approaches zero if the rainbow hologram image is near the optical axis of the hologram aperture.
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Color evaluation of computer-generated color rainbow holography
Journal of Optics, 2012A color evaluation approach for computer-generated color rainbow holography (CGCRH) is presented. Firstly, the relationship between color quantities of a computer display and a color computer-generated holography (CCGH) colorimetric system is discussed based on color matching theory. An isochromatic transfer relationship of color quantity and amplitude
Yile Shi, Hui Wang, Qiong Wu
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