And a set of features combining color, shape and topological are extracted from each object. Based on the features, a classification criterion is employed to perform the map segmentation.

通过提取对象的颜色、形状和近邻关系等特征，建立分类标准，实现地形图的自动分层。

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And a set of features combining color, shape and topological are extracted from each object. Based on the features, a classification criterion is employed to perform the map segmentation.

通过提取对象的颜色、形状和近邻关系等特征，建立分类标准，实现地形图的自动分层。

youdao