Creation of a color reference chart for RTB foods color characterization. High-throughput phenotyping protocols (HTPP), WP3

Cornet Denis, Alamu Emmanuel Oladeji, Meghar Karima, Davrieux Fabrice. 2021. Creation of a color reference chart for RTB foods color characterization. High-throughput phenotyping protocols (HTPP), WP3. Montpellier : RTBfoods Project-CIRAD, 19 p.

https://doi.org/10.18167/agritrop/00673

Document technique et de recherche

Prévisualisation

Version publiée - Anglais
Sous licence

.
RTBfoods_SOP_Imaging colour reference chart_RTB products.pdf
Télécharger (1MB) | Prévisualisation

Résumé : Either for visual evaluation or image analysis, a color selection chart allow for a more accurate and repeatable color quantification. Commercial color reference chart exist but covers a wide range of colors, making it harder to evaluate the desired object color. The present SOP describe step by step how to implement its own customized color reference chart and propose an R script automatizing the process. The creation of a color reference chart relies first on the extraction of typical colors from a collection of available numeric images covering the range of desired product color variation. This palette of color is then characterized in different color spaces, plotted on a chart and printed. Finally, the correspondence between the desired color value and the printed chart is verified using a chromameter.

Mots-clés libres : Food quality, Colorimetry, Synthetic color chart, SRGB standard, CIELAB, R statistical computing language

Agences de financement hors UE : Bill and Melinda Gates Foundation, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Centro Internacional de Agricultura Tropical, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, James Hutton Institute

Projets sur financement : (FRA) Breeding RTB Products for End User Preferences

Auteurs et affiliations