遥感图象处理与信息提取方法的研究

在图象预处理中．为了研究不同处理方法的效果．分别采用了灰度变换、图象平滑和图象锐化等方法，经过比较发现，不同的增强方法对不同的特征地物的效果有明显的差异；在图象信息提取时，分别使用最小距离法、比值法和组合比等方法．采用不同波段的图象组合进行运算，可以依次突出不同的地物信息．从而达到了信息自动识别的目的。

Research of remote sensing image processing and information extraction method

In the program of enhancing image in advance, in order to study the result in different methods, we adopted gray-scale transformation, image smoothing and image sharpening and so on, through the comparison, we found that different enhancement methods have obvious differences to the different surface features. We used the shortest distance method, ratio method, combinational relative method respectively to extract information from images, and made a calculation with different wave image combination to withdraw different geobody information in turn, thus, the information can be automatically distinguished.