于内容的图像识别技术中．颜色自相关图是一种常用的图像颜色特征提取法。文章在此基础上，考虑图像

结构特征，通过对图像进行水平和垂直两次扫描．分别建立图像相似区域的变化图。该算法和颜色自相关图一并应用到

SOM网络上。实现了一个基于颜色特征和结构特征的图像分类。-Abstract：Many approaches for extracting color feature are widely used for content-based image retrieval．Each of them

has its unique advantages．However，we cannot present the visual characterization of an image comprehensively by simply

using a color feature extracting method．