较为系统地讲述了遥感数字图像处理必备的基础知识，遥感图像预处理、增强处理、遥感图像的监督分类和非监督分类等基本理论。(The basic knowledge of remote sensing digital image processing, the basic theory of remote sensing image preprocessing, enhancement processing, supervised classification and unsupervised classification of remote sensing images are systematically described.)