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With the advent of fluorescent whitening agents, the general idea of whiteness has changed. Numerous whiteness formulas by which we evaluate whiteness of white materials have been proposed, but these formulas (including the CIE whiteness formula) were found not to correlate well to visual...
Despite angle dependence and polarization selectivity, the color of cholesteric liquid‐crystal (CLC) polysiloxane films can be quantified by standard colorimetry. A new fractured form of the film called “flakes” makes it possible to use the Center of Gravity Color Mixing Principle to predict the...
Although the CIE states that the 1931 2° (x(λ), y(λ), z(λ)) standard observer characteristics and those of the 1964 10° (x10(λ), y10(λ), z10(λ)) standard observer were derived from experimental data in the same way, there are differences. One discrepancy is a difference of 6 nm in the tangent...
This Part VI is a progress report, with two motivations. (1) To publish the new method of extraction of weighting functions, and to show the demonstrated large reduction of tristimulus error in an array of ten disparate visually‐matching pairs of white lights, and (2) to attempt to interest...
The methods of simultaneous and successive, or memory, color matching have been compared for 10 color reference samples distributed in two groups each performed by 50 observers (25 men and 25 women). Our results, obtained with a total of two hundred Munsell color chips arrayed on ten gray...
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