计算机与现代化Issue(11)：53-57,5.DOI:10.3969/j.issn.1006-2475.2016.11.009
Computer and Modernization
Dynamic Threshold Selection of Local Region Based on Image Partition
摘要
Abstract
Most of the current edge detection methods adopt global threshold selection, which leads to the missing edge of local image. Moreover, the existing local threshold selection based on image partition causes a big difference of local thresholds and makes the edge discontinuity. Thus, in order to solve these problems, a method of local dynamic threshold selection based on im-age partition is proposed. Entropy is used to block image. The influence of the neighborhood on dynamics is considered to calcu-late the local threshold and ensure the continuity of local thresholds. Finally, the method is applied to Robert operator and Canny algorithm. The results show that the dynamic threshold selection can improve the detection accuracy effectively and enhance the continuity of edge.关键词
边缘检测/动态阈值选取/图像分块/Canny算法/Robert算子Key words
edge detection/dynamic threshold selection/image partition/Canny algorithm/Robert operator分类
信息技术与安全科学引用本文复制引用
朱海洋,徐根玖,李元晨,张梦祺..Computer and Modernization[J].计算机与现代化,2016,(11):53-57,5.基金项目
国家大学生创新创业训练计划项目(201510699249) （201510699249）
