Incardona, A. and Paladini, G. and Stella, G. and Gueli, Anna M. (2024) Color specification: Comparison between contact and non-contact measurement methodologies. Il nuovo cimento C, 47 (5). pp. 1-4. ISSN 1826-9885
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Abstract
A methodological study regarding color specification through both contact and non-contact techniques is presented. The principal aim is the evaluation of chromatic differences obtained by the two methods varying the experimental parameters in order to quantify their influence. The results obtained for cardboard cubes of seven hues, red (R), green (G), blue (B), yellow (Y), black (K), white (W) and grey (Gy), considering CIELAB 1976 coordinates, are presented. The color differences were evaluated through the ΔE values and in the chromatic plane using Δa∗ and Δb∗ differences. The study was performed using a Konica Minolta® CM 2600d spectrophotometer and a Konica Minolta CS-1000A spectroradiometer for, respectively, contact and non-contact measurements under different experimental conditions. Different illuminants (D65, A and F11) and both the 2◦ and 10◦ CIE standard observers were selected. In both cases the circular measuring area used was 11mm in diameter. The results obtained show good agreement except for the extreme achromatic black and white cubes. The best agreement was obtained when illuminant A is used for the colorimetric calculation. The obtained results provide novel and useful insights into the behavior of the color coordinates according to the chosen experimental conditions.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 23 Jan 2025 14:25 |
| Last Modified: | 23 Jan 2025 14:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23338 |
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