Use of digital images to estimate CIE color coordinates of beef

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dc.contributor.authorLarrain, R. E.
dc.contributor.authorSchaefer, D. M.
dc.contributor.authorReed, J. D.
dc.date.accessioned2024-01-10T12:10:35Z
dc.date.available2024-01-10T12:10:35Z
dc.date.issued2008
dc.description.abstractThe objective of this study was to evaluate the use of digital images (DI) to estimate CIE L*a*b*, hue angle and chroma of beef, as compared to a colorimeter (CM). Loin samples from 21 steers finished with high grain diets were displayed under retail-simulated conditions. Color readings were obtained from 63 cores covering the full spectrum of discoloration in beef. CIE L*, a*, and b* were measured with a surface-reflectance CM. Red, green and blue (RGB) values were obtained from DI and sequentially transformed to XYZ and CIE L*a*b* color space. Hue angle and chroma were calculated from a* and b* values. Regressions of CM on DI for a*, hue angle and chroma had R-2 values of 0.93 and above. Average color difference (Delta E-ab*) between the predicted and the actual CM L*, a*, and b* values for 13 samples that were not included in the regressions was 1.57, below reported thresholds of detection for 50% of observers. Color readings from DI could be used to accurately predict color coordinates measured by CM, especially a*, hue angle and chroma. Use of digital imaging could become a practical tool to detect changes in beef color and other muscle foods. (c) 2008 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.foodres.2008.01.002
dc.identifier.issn0963-9969
dc.identifier.urihttps://doi.org/10.1016/j.foodres.2008.01.002
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76589
dc.identifier.wosidWOS:000256245400006
dc.information.autorucAgronomía e Ing. Forestal;Larraín R;S/I;95090
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final385
dc.pagina.inicio380
dc.publisherELSEVIER SCIENCE BV
dc.revistaFOOD RESEARCH INTERNATIONAL
dc.rightsacceso restringido
dc.subjectbeef color
dc.subjectdigital images
dc.subjectRGB
dc.subjectcolorimeter
dc.subjectCIE L*a*b*
dc.subjectMEAT
dc.subjectQUALITY
dc.subjectRGB
dc.titleUse of digital images to estimate CIE color coordinates of beef
dc.typeartículo
dc.volumen41
sipa.codpersvinculados95090
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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