首页 | 官方网站   微博 | 高级检索  
     

二维Otsu自适应阈值选取算法的快速实现
引用本文:汪海洋,潘德炉,夏德深.二维Otsu自适应阈值选取算法的快速实现[J].自动化学报,2007,33(9):968-971.
作者姓名:汪海洋  潘德炉  夏德深
作者单位:1.国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室 杭州 310012
摘    要:Otsu 自适应阈值算法作为图像阈值分割的经典算法, 在图像领域得到了广泛的应用, 在此基础上发展起来的二维阈值法因为计算时间长而制约了其应用. 针对二维 Otsu 自适应阈值算法计算复杂度高的缺点, 通过消除二维自适应阈值算法中的冗余计算, 用迭代的方式得到查询表, 从而大大提高了二维阈值算法的计算速度. 实验结果表明, 该算法不仅计算时间远远小于原始二维 Otsu 算法, 并且求得的阈值跟原始的算法一样.

关 键 词:阈值选取    类间方差    图像分割    Otsu
收稿时间:2006-3-29
修稿时间:2006-03-292006-06-15

A Fast Algorithm for Two-dimensional Otsu Adaptive Threshold Algorithm
WANG Hai-Yang,PAN De-Lu,XIA De-Shen.A Fast Algorithm for Two-dimensional Otsu Adaptive Threshold Algorithm[J].Acta Automatica Sinica,2007,33(9):968-971.
Authors:WANG Hai-Yang  PAN De-Lu  XIA De-Shen
Affiliation:1.State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012;2.Department of Computer, Nanjing University of Science and Technology, Nanjing 210094
Abstract:As a classical image segmentation method, Otsu adaptive threshold algorithm has been applied widely in image processing. But the long-time computation limits the use of the two-dimensional Otsu threshold algorithm based on the Otsu threshold algorithm. This paper gives a fast algorithm for twodimensional Otsu adaptive threshold algorithm that overcomes the disadvantage of computational complexity. This fast algorithm gets rid of redundant computation and yields a look-up table by iteration. The experimental result has demonstrated that the computational time of the fast method is not only far less than that of the original two-dimensional one, but also yields the same threshold as that of the original method.
Keywords:Otsu
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《自动化学报》浏览原始摘要信息
点击此处可从《自动化学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号