摘要
本文把数学形态学的流域分割算法引入到处理遥感影像图上,实现了大数据量遥感影像水系图的流域分割。本文提供的流域分割方法与传统分割方法不同,该方法是根据数学形态学的知识,通过选取极低点,以极低点为中心膨胀得到分割区域来实现的。在膨胀时本文采用了八邻域膨胀的方法,提高了效率,缩短了运行时间,使分割得到了较好的效果。这种方法对于数据量很大的影像图尤其适用。
This paper gives the method that deal with water system remote sensing images. It bases on the Mathematical Morphology. It is generally called ″Watershed″. But it is different from the traditional division arithmetic. It gains the conclusion though selecting the lowest points and centering these points dilating to get the division areas. In the course of dilation, it depends on the eight adjacent areas. It not only makes the efficiency improved, but also shortens time. Then. This method can apply to the image with large quantity data.
出处
《现代计算机》
2003年第11期29-32,共4页
Modern Computer
