The problem of unsupervised classification of remotely sensed image is considered in this paper.

该文研究了无监督遥感图像分类问题。

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While for terrace extraction, supervised classification has better result than unsupervised classification. The difference of total accuracy between two methods based on IKONOS image is more than 12%.

而对于IKONOS影像梯田提取，两种分类结果精度相差12%以上，监督分类结果明显优于非监督分类结果。

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