Article
CIELAB – Spectral Image MATCHING: An App for Merging Colorimetric and Spectral Images for Grapes and Derivatives
Author/s | Rodríguez Pulido, Francisco José
Gordillo Arrobas, Belén Heredia Mira, Francisco José González-Miret Martín, María Lourdes |
Department | Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal |
Publication Date | 2021 |
Deposit Date | 2024-05-07 |
Published in |
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Abstract | Imaging techniques have revolutionised the way quality is assessed in food products. Using cameras, it is possible to estimate not only the chemical composition of a product but also its geometric distribution. However, ... Imaging techniques have revolutionised the way quality is assessed in food products. Using cameras, it is possible to estimate not only the chemical composition of a product but also its geometric distribution. However, the limited range of detectors implies the use of different measuring equipment. The presence of small and discrete samples or very heterogeneous samples makes joining both sets of data a complicated task. This work arises from the need to merge images with colour information and NIR spectral information on grape samples and derivatives. An application has been created under MATLAB to join this type of images so that it is possible to simultaneously extract the colour and/or spectral information of each pixel or object present in the image. Although the software can be used in a wide range of applications, it has been successfully applied to grape and grape seed samples. In red grape bunches, it was possible to evaluate individually grapes and notice differences due to changes in visible and infrared regions at the same time. In the case of white grape seeds, it was proved that merged images were better to discriminate between varieties than the single CIELAB or spectral images. |
Funding agencies | Fondo Europeo de Desarrollo Regional (FEDER) Ministerio de Economía y Competitividad (MINECO). España |
Project ID. | US-1261752
AGL2017-84793-C2 |
Citation | Rodríguez Pulido, F.J., Gordillo Arrobas, B., Heredia Mira, F.J. y González-Miret Martín, M.L. (2021). CIELAB – Spectral Image MATCHING: An App for Merging Colorimetric and Spectral Images for Grapes and Derivatives. Food Control, 125, 108038. https://doi.org/10.1016/j.foodcont.2021.108038. |
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