一、引言自从1972年资源卫星(陆地卫星)首次发射以来,首先试验了利用目视判读,手工编制森林分布图。其中包括黑白影象地图和光学彩色合成影象地图。相继又进行计算机数字图象处理,使分类精度、制图质量都有相应的提高。但是计算机处理,早期的试验其适用程度仍是不够理想的。随着不断地探索,在许多方面都 I. INTRODUCTION Since the first launch of the Resource Satellite (Landsat) in 1972, the first attempt has been made to use manual interpretation of the forest distribution using visual interpretation. These include black and white image maps and optical color composite image maps. Successively carried out computer digital image processing, classification accuracy, graphics quality has been increased accordingly. However, computer processing, the early test its application is still not ideal. With constant exploration, in many ways