关键词: 图像检索 颜色直方图 信息熵 分块主色

Abstract:

In order to overcome the defect that retrieving images of different object colors in the same background cannot use the feature of colors, but must use the feature of object shapes,and further enhance the image retrieval effect,the paper proposes a method of image retrieval based on the color histogr  m entropy value and the sub-block main color. The experimental results show that the method can not only improve the precision rate and the recall ratof image retrieval, but also retrieve the images of different object colors in the same background using only the feature of colors.

Key words: image retrieval;color histogram, information entropy, main color of image blocks