基于ETM+遥感影像水体信息提取方法探讨

摘要

利用卫星遥感数据提取地物信息,已成为遥感观测地物的一种重要手段.但在地物信息提取时由于多种因素的干扰,导致部分地物信息丢失.如何解译出地物的细部信息成为遥感信息提取的关键.利用Landsat7遥感数据为例,探讨了提取水体专题信息的方法,通过对遥感影像进行最佳波段组合、色彩变换、分类后对水体信息进行提取,效果较好.%It is an important method to observe objects on the earth by extracting information from remote sensing images, but there will be lost much important information because of some interference factors, so how to extract particular information of interested objects is the key of extracting information. This paper discussed the method of extracting water information from Landsat 7 data, including the methods of band combination, color transformation ,classification, and the result is better.