一种基于ERDAS软件在TM影像中提取较小水体的方法

摘要

The method of small water extraction is discussed in this paper,using a new method based on ERDAS to extract small water.We extract main water-body by spectrum model,and take the false synthetic figure which consist of three bands of color in the HIS color space,then construct the model of small water extraction,united results which extracted from those models.Results from empirical studies,applying this method is useful.%本文对从landsat影像中提取细小水体的方法作了研究,基于ERDAS软件用新的识别方法提取较小水体。利用谱间模型提取TM影像中较大水体,再将TM影像中某3个波段组成的假彩色合成图转换到IHS彩色空间,构建模型提取细小水体,并与前者识别结果进行叠加,获得较好效果,证明在实际中可用。