Analysis of fruit and vegetable surface color

Authors:
László Baranyai;Anett Szepes
Affiliations:
SzIE University, Department of Physics & Control, H1118 Budapest, Somlo'i u. 14-16, HUNGARY;SzIE University, Department of Physics & Control, H1118 Budapest, Somlo'i u. 14-16, HUNGARY
Venue:
Machine Graphics & Vision International Journal - Special issue on latest results in colour image processing and applications
Year:
2002

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Abstract

Changes of color on the surfaces of tomatoes, mushrooms and apples were measured with digital image processing techniques. Texture analysis methods were applied to identify the stage of ripeness and defects, such as mechanical injuries and microbiological infection. Distributions of red, green, blue color components and intensity values were shown by histograms. Differences in intensities - in the directions of 0°, 45°, 90°, and 135° - were also collected. First - order statistical parameters and coordinates of polar quality points for sum and difference histograms were calculated and evaluated. Classification powers of different color signals were compared.