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分水岭

于 2022-10-17 发布 文件大小:2.11 kB
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灰度级图像可视为地形的起伏,在那里一个像素的灰度值被解释为它的海拔高度在救济。一滴水落在地形起伏流动沿着一条小路,最终达到局部极小值。直观地说,松了一口气的分水岭对应于相邻的汇水盆地的水滴的限制。在图像处理中,可计算不同流域行。在图,这一些可能在上边缘或混合线条的节点和边缘节点上定义。流域也可能连续域中定义。[1] 也有许多不同的算法来计算流域。为了达到分割目标,梯度幅值 (即,梯度向量的长度) 被解释为高程信息。

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