首先介绍了图像边缘检测技术和几种经典的边缘检测算子。然后对小波变换进行了简单的理论分析，阐述了小波多尺度思想，并对基于小波变换的图像边缘检测进行了简单的介绍。-First,several classic edge detection operators are analyzed in this paper,and then the principle and status are briefly described.Second,the theory of wavelet transform i

主要介绍多尺度几何分析的知识，已PPT的形式详述了其具体应用与理论。-this file mainly introduce some basic knowledge of multiscale geometric analysis by PPT formation, which includes its theory and appilication.