Enhancing colour differences in images of diseased mushrooms

被引:55
作者
Vízhányó, T [1 ]
Felföldi, J [1 ]
机构
[1] Univ Hort & Food Ind, Dept Phys & Control, H-1118 Budapest, Hungary
关键词
image analysis; image processing; colour enhancement; browning; mushroom;
D O I
10.1016/S0168-1699(00)00071-5
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Discoloration of mushrooms (senescence, damage, and bacterial infection) is an undesirable phenomenon in mushroom houses and on the market. Simple cluster analysis was not sufficient to discriminate the browning caused by disease from the natural browning of the mushroom. The transformation of RGB values to a* and b* colour components and the elimination of intensity gave a definitely better separation for the diseases. The best rate of separation was achieved by means of a vectorial normalisation, which was developed on the basis of the statistical analysis of the distribution of the colour points. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:187 / 198
页数:12
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