基于小波变换和数学形态学的边缘检测法

Edge Detection Based on Wavelet Transform and Morphology

提出一种基于小波变换和数学形态学的边缘检测算法。对于遥感图像的边缘检测,利用小波变换的特点,先对遥感图像进行分解,获取高频分量的详细细节。然后通过对遥感图像特点的研究,文中提出一种适于遥感图像的L形结构元素。利用小尺寸结构元素对边缘细节的检测能力,从而得到相对较好的图像特征和细节。

It presents an algorithm of edge detection based on wavelet transform and morphology.An improved techique for edge detection of remote sensing images can be achieved by combing techniques.First the images are decompose based on wavelet transform.Then the edges are detect by using the concept of morphology.In this processing,a small structure element,with the shape just as ‘L’,is proposed,which has the ability to detect the details of edge.the computer simulation result demonstrates the correctness and validation of the algorithm.