彩色扫描军事地形图等高线提取方法  

Contour lines extraction from color scanned military topographical maps

作　　者：董贤军[1] 陈鸿[1] 汤晓安[1] 张海英[2] 

机构地区：[1]国防科学技术大学电子科学与工程学院,长沙410073 [2]沧州师范专科学校教育心理系,河北沧州061000

出　　处：《计算机应用》2009年第8期2109-2111,共3页journal of Computer Applications

基　　金：总装备部武器装备预研项目

摘　　要：提出了一种基于HSV色彩模型的等高线提取方法。首先去除地形图中的黑色要素,然后选取原图等高线上一像素点色调值作为初值,按一定步长逐步扩大色调阈值,借助对应二值图连通区域数确定阈值区间。该算法无须人为指定聚类中心和类数,初始像素点的选取对提取结果不起决定作用。实验结果验证了算法的鲁棒性,并取得比较理想提取效果。An effective method based on HSV color model for extracting contour lines from color scanned topographical maps was proposed. Firstly the black elements were removed; the value of a pixel in contour line was regarded as the initial value; the scope of hue threshold was expanded in accord with definite step; the number of connectivity region was used to determine the threshold range. This algorithm does not need to artificially specify the centers and quantity of color clustering, and the choice of the initial pixel does not make crucial effect on the quality of the final result. The experimental results verify that this algorithm is robust, and can obtain good extracting effect.

关 键 词：等高线提取 彩色分割 地形图 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]