关于等高线特征描述与提取的几篇好文章，主要利用了等高线的形状与纹理特征。-There are several articles about the discr iption and extraction of contour feature, which mainly discuss shape feature and texture feature.

颜色形状检索论文及形状特征提取MATLAB代码(Color and shape retrieval, paper and shape feature extraction, MATLAB code.)

提取了图像的形状特征，文件自带测试图，在matlab 2016上成功运行(Extracted image shape features)