Studies on Color Rendering and Illuminant Metamerism (Part 3)
نویسندگان
چکیده
منابع مشابه
Four-color laser white illuminant demonstrating high color-rendering quality.
Solid-state lighting is currently based on light-emitting diodes (LEDs) and phosphors. Solid-state lighting based on lasers would offer significant advantages including high potential efficiencies at high current densities. Light emitted from lasers, however, has a much narrower spectral linewidth than light emitted from LEDs or phosphors. Therefore it is a common belief that white light produc...
متن کاملMetamerism, Color Inconstancy and Chromatic Adaptation for Spot Color Printing
The use of metamerism index & color inconstancy index is studied for approval of spot colors used in decorative gravure products, especially spot colors, which are viewed under different light sources at the customer’s end. This work shows that the metamerism index is not sufficient for approval of spot colors, because it doesn’t provide any idea about how colors will transform under different ...
متن کاملAsymmetric color matching: how color appearance depends on the illuminant.
We report the results of matching experiments designed to study the color appearance of objects rendered under different simulated illuminants on a CRT monitor. Subjects set asymmetric color matches between a standard object and a test object that were rendered under illuminants with different spectral power distributions. For any illuminant change, we found that the mapping between the cone co...
متن کاملSpectral-Based Six-Color Separation Minimizing Metamerism
A spectral-based six-color printer model was derived in determining the six color separations for an input spectral image that yields the least metameric reproduction relative to the original. Confined by the ink-trapping limitation, the six-color halftone printer modeling effort is a union of ten four-color halftone printer modeling efforts in addition to a four-ink selector. The four-ink sele...
متن کاملHow Strong Metamerism Disturbs Color Spaces
Systems for arranging and describing color include “color spaces” and “color order systems.” In a color space, tristimulus values R, G, and B are computable for every light (every point in the space). In familiar color spaces, such computation makes use of three functions of wavelength (the color-matching functions that define one of the CIE Standard Observers), one function corresponding to ea...
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ژورنال
عنوان ژورنال: JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
سال: 1971
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1917.55.8_481