Identification of pale lager beers via image analysis
Carregando...
Data
2011
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
This article presents an alternative
color-based classification methodology which is used
for pattern recognition of pale lager beers. Beer
sample images are digitalized on a common desk
scanner resulting in color histograms in the RGB
scale. The frequency distribution of color indexes according
to each color channel were obtained for each
image, then decomposed into vector lines R, G and
B, each vector having 256 components (indexes/color
tones). PCA is used to represent the data in twodimensional
plots, and also to represent color
changes of beer samples exposed to light and air. After
one hour, significant changes in the yellow color
of the beer can be distinguished in the score plot. In
short, differences between brands of beer are directly
related to differences in their color.
Descrição
Palavras-chave
PCA, Chemical imaging, Pale lager beers
Citação
SILVA, T. C. O.; GODINHO, Mariana S.; OLIVEIRA, A. E. de. Identification of pale lager beers via image analysis. Latin American Applied Research, Bahía Blanca , v. 41, p. 141-145, 2011.