【摘要】 围岩蚀变可以指导找矿 ,但蚀变信息在遥感图像上是一种微弱信息 ,只有经过增强处理后才能明显显示出来。综述了遥感图像处理提取蚀变信息的一些方法 ,这些方法在实际应用中都取了很好的效果。最后简要介绍了一些近年来出现的新方法更多还原

【Abstract】 The alteration information can direct the mineral exploration, but the information in remote sensing image is very weak, it can’t show until it is enhanced by processing. In this paper, some methods are reviewed about the extraction of alteration information in remote sensing image. These methods have been proved to be very successful in practice. At last, some new methodology appears in the latest are simply introduced.更多还原