UNIVERSITY OF TECHNOLOGY
毕业论文
题 目 图像分割技术研究
学生姓名 学 号 专业班级 通信工程 指导教师 学 院 计算机与通信 答辩日期 2012 理工大学毕业论文
图像分割技术研究
Research on Image Segmentation Technology
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理工大学毕业论文
摘 要
图像分割是图像特征提取和识别等图像理解的基础，对图像分割的研究一直是数字图像处理技术研究中的热点和焦点。本文介绍了数字图像处理技术中图像分割技术的基本原理和主要方法，对经典的图像分割算法进行了较全面的叙述，分别研究了基于边缘、区域和形态学分水岭法的图像分割方法，并使用MATLAB软件对各种分割方法进行了仿真，对仿真结果进行了分析。
关键词：图像分割；边缘；区域
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理工大学毕业论文
Abstract
Image segmentation is the foundation of the understanding in image feature extraction and recognition, and the reseach on it is usually the hotspot and focus in the study of digital image processing technology. This paper introduces the basic principles of techniques and the main methods in image segmentation, which is always used in digital image processing techniques, were investigated by the law of marginal, regional and morphological, then use the MATLAB software simulating a variety of segmentation methods and the simulation results are analyzed. In this paper, the classic image segmentation algorithm has been comprehensively narratived.
Key words: image Segmentation；marginal image segmentation；regional image segmentation
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理工大学毕业论文
目 录
第一章 图像分割技术基本现状和发展趋势 .................................................................................................. 1 1.1图像分割的意义 ............................................................................................................................................. 1 1.2图像分割技术的基本现状 .......................................................................................................................... 1 1.3图像分割技术的发展趋势 .......................................................................................................................... 2 第二章 图像分割的主要方法综述 ..................................................................................................................... 3 2.1基于边缘的分割方法 ................................................................................................................................... 4 2.2基于区域的分割方法 ................................................................................................................................... 4 2.3结合特定理论工具的分割方法 ................................................................................................................ 5 第三章 基于边缘的图像分割方法的仿真实现 ............................................................................................. 6 3.1边缘检测 ........................................................................................................................................................... 6 3.1.1梯度算子 ................................................................................................................................................... 6 3.1.2拉普拉斯算子 ......................................................................................................................................... 7 3.1.3 Canny算子 ............................................................................................................................................... 8 3.1.4结果分析 ................................................................................................................................................... 8 3.2霍夫变换 ......................................................................................................................................................... 11 3.2.1利用霍夫变换检测图像边缘的算法 ............................................................................................ 11 3.2.2结果分析 ................................................................................................................................................. 13 第四章 基于区域的图像分割方法的仿真实现 ........................................................................................... 15 4.1区域分割算法................................................................................................................................................ 15 4.1.1区域生长法 ............................................................................................................................................ 16 4.1.2区域分裂与合并法 .............................................................................................................................. 16 4.2阈值分割方法................................................................................................................................................ 18 4.2.1直方图双峰法 ....................................................................................................................................... 18 4.2.2最大类间方差法 .................................................................................................................................. 20 4.2.3迭代法 ..................................................................................................................................................... 21 第五章 基于形态学分水岭的图像分割方法的仿真实现 ........................................................................ 23 5.1 分水岭法图像分割基本原理 .................................................................................................................. 23 5.2 分水岭法图像分割算法 ........................................................................................................................... 23 5.3 分水岭法图像分割仿真及结果分析 ................................................................................................... 25
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