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Range Definition of Acceptable Differences of Chromatic Value by Color Measurement and Visual Estimation (CROSBI ID 130378)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Knešaurek, Nina Range Definition of Acceptable Differences of Chromatic Value by Color Measurement and Visual Estimation // Croatica chemica acta, 70 (1997), 4; 955-969-x

Podaci o odgovornosti

Knešaurek, Nina

engleski

Range Definition of Acceptable Differences of Chromatic Value by Color Measurement and Visual Estimation

Under the defined conditions, 24 samples, considered to be similar to the chosen standards in their chromatic characteristics, were chosen by the visual method among 126 similar samples. The standard and all the tested (investigated)samples were measured on the spectral photometer. The measured reflectancies were recalculated into numerical values of CIELAB. Based on the data obtained by the instrumental method, the developed differences of 24 visually similar samples were calculated and analyzed. The limits of the visual judgement expressed as dL, dH, dC were numerical defined. The developed color differences are usually defined by one numerical data, i.e., dE. Based on their analysis of the calculated chromatic values of CIELAB and their chromatic influences in the visual estimation of the change of the expression of dE, it is suggested to use three numerical values, dL, dH, dC, to define color differences. In this way, the values that caused the developed differences can be defined.

CIELAB; colorimetry; colour tolerance; hue

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Podaci o izdanju

70 (4)

1997.

955-969-x

objavljeno

0011-1643

Povezanost rada

Grafička tehnologija