【摘要】 小波变换,由于其具有时频局部化的特性及多尺度特性,能敏感地反映突变信号,是一种理想的边缘提取方法．本文系统地介绍了作者在图像边缘检测方面所做的理论探讨、算法及应用研究工作．目前的边缘提取方法有多种,本文将重点集中于基于小波变换的图像边缘检测方法的理论推导和算法实现．更多还原

【Abstract】 Wavelet transform is an ideal edge-detection extraction method because it has the features of time-frequency localization and multi-scale,and it can sensitive reflect change signal. This paper systematically introduces the theory exploring,algorithm and applications research which are done by the author in image edge-detection.There are many edge extraction methods, and this paper will focus on theory derivation and algorithm realization of image edge-detection method based on wavelet transform.更多还原