彩色栅格地图滤除背景的模糊梯度方法

在总结栅格地图特性的基础上,利用梯度边缘检测和模糊边缘检测方法的思想,采用分区域梯度模糊检测方法,克服了梯度算法对糊模要素提取不佳的缺陷,较好地实现了地图背景的滤除,并在滤除背景的前景图上采用分色和数学形态学方法,得到了所需的前景要素。通过实验证明,此方法提取的前景要素清晰度高、连续性好、处理速度快并能很好地解决粘连等问题。

A Kind of Fuzzy-Gradient Algorithm Applied to Remove Background of Map Image

In this paper,a kind of fuzzy-gradient algorithm is presented on the basis of analyzing the characteristics of maps,in which the idea of fuzzy sets and gradient are used.It solves the problem of gradient which can not pick-up the fuzzy foreground from the map clearly.After removing the background of the map,after-processing is processed with the segmentation of color map and mathematical morphology.Experiments prove that the definition and running speed of this algorithm are satisfied and the problems of conglutination can be well solved.