一种改进的LOG遥感数字图像边缘提取算法

Edge Detecting of Remote Sensing Image by Improved LOG Algorithms

边缘提取 ,是遥感图像处理的基本工作之一 .LOG算法是一种较常用的边缘提取方法 ,但缺点也很明显 .通过去除光照强度影响、寻找空间常数σ最佳取值范围以及插值计算精确边缘等方法对LOG算法进行改进 ,使得边缘提取更加精确和有效 .

Edge detecting is one of the basic process in image processing. LOG Algorithm is one of the best edge detecting methods in common use, however, its shortcoming is also very obvious. To obtain better effect of edge detecting, the paper improves the LOG algorithms by getting rid of the luminosity effect, seeking the best scale of σ and the inserting method to obtain more precise and more effective image.