摘要
提出了一种利用数学形态学提取图像中地形轮廓的方法。首先分析运用传统单一边缘检测算子提取地形轮廓的不足,然后着重介绍了数学形态学提取地形轮廓的原理,最后通过实验分析,采用开运算与闭运算相结合的方法提取地形轮廓,不仅有效地去除了各种噪声,而且极大地保持了地形轮廓的细节特征。
An approach of terrain contour extracting based on mathematical morphology was proposed in this paper.Firstly,the deficiency of extracting method which used traditional and single edge detection operator had been analyzed.Then the principles of the algorithm based on mathematical morphology had been discussed emphatically.Finally,the experiment demonstrated that not only many kinds of noisy had been rejected but also the minutiae feature of terrain contour had been preserved properly by combining opening operation and closing operation.
出处
《地理空间信息》
2013年第3期138-139,1,共2页
Geospatial Information
关键词
数学形态学
地形轮廓
边缘检测
轮廓提取
mathematical morphology,terrain contour,edge detection,contour extraction
