Ripeness estimation of grape berries and seeds by image analysis Rodríguez Pulido, Francisco J. Gómez Robledo, Luis Melgosa Latorre, Manuel Gordillo, Belén González Miret, M. Lourdes Heredia, Francisco J. colour grape seeds image analysis ripeness Vitis vinifera We thank the Ministry of Science and Innovation of Spain (Project AGL2008-05569-C02-02) and the concession of the fellowship (BES-2009-025429) for financial support. Digital imaging has become a powerful tool for the characterization and quality control of foodstuff. Because of the need to automate processes, faster tools are needed and Computer Vision is a good alter native to chemical analysis of many products in quality control. Appearance of grape seeds and grape ber ries change during the ripeness. These changes are closely related to the chemical composition, especially phenolics, which are very important compounds due to their implications on the intensity and stability of red wine colour. In this study, a complete characterization of grape seeds and grape berries by digital image analysis is described. The size of grapes and the veraison has been determined by image analysis and it has been also established an objective Browning Index of seeds. Morphological differences between varieties were studied by applying discriminant analysis models which allowed us to classify the grape seeds with high accuracy. 2024-10-29T13:41:04Z 2024-10-29T13:41:04Z 2012 journal article Rodríguez-Pulido, F. J., Gómez-Robledo, L., Melgosa, M., Gordillo, B., González-Miret, M. L., & Heredia, F. J. (2012). Ripeness estimation of grape berries and seeds by image analysis. Computers and Electronics in Agriculture, 82, 128-133. https://doi.org/10.1016/j.compag.2012.01.004 0168-1699 https://hdl.handle.net/10481/96475 10.1016/j.compag.2012.01.004 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier