基于边缘检测的图像分割算法研究及其应用 下载本文

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******本科毕业论文(设计)

基于边缘检测的图像分割算法研究及其应用

摘要:图像分割是图像处理中的一个经典难题,也是图像处理和计算机视觉领域中的基本技术。目前,广大研究者在图像分割领域里已提出了上百种分割方法,每种分割方法只局限特定的分割对象,至今没有一种通用的方法。边缘检测是图象处理中重要的一个环节。文章具体对Prewitt 算子、Sobel算子、高斯-拉普拉斯(LOG)算子、Wallis算子、 过零点检测(Marr-Hildreth算子)、 Canny边缘检测方法、 SUSAN(Smallest Univalue Segment Assimilating Nucleus)边缘检测等进行算法分析,利用上述算法,找出其中较好的一种检测方法用于图像分割.

关键词:图像分割;边缘检测;图象处理;检测算子

Image Segmentation Based on Edge Detection Algorithm and it’s

Application

Abstract:Image segmentation is not only a cIassical puzzle for researchcrs but also the imponant part of image analysisand the computer vision field.Nowadays,hundreds of methods have been put forward to the image sqgmcntation,and each of the methods is used for special segnlented objects.There is not a generaI method for irnagc segment as yet.This Article specific to analysis of Prewitt operator, Sobel operator, Gauss - Laplace (LOG) operator, Wallis operator, zero crossing detection (Marr-Hildreth operator), Canny edge detection method, SUSAN (Smallest Univalue Segment Assimilating Nucleus) algorithm for edge detection, etc. Using the above method, find out a better method for detecting image segmentation.

Key words: Image segmentation; edge detection;image processing; detection operator

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目 录

摘 要 .......................................................................................................... II ABSTRACT ..................................................................................................... II 1 绪 论 ........................................................................................................... 1 1.1 基于边缘检测的图像分割算法的背景和意义 ..................................... 1 1.2 基于边缘检测的图像分割算法的主要内容 ......................................... 1 1.3 本论文的结构安排 ................................................................................. 2 2 图像分割以及边缘检测算法的分析 ......................................................... 3 2.1 图像分割 ................................................................................................... 3

2.1.1 概述 ............................................................................................... 3 2.2 边缘检测 .. ………………………………………………………………4

2.2.1图像边缘........................................................................................5 2.2.2几种边缘检测算子........................................................................7 3 基于边缘检测的图像分割算法的应用……………………………….....17 3.1 CANNY算子的应用 .................................................................................. 17 结果比较.........................................................................................................18 结 论 ......................................................................................................... 18 后摘要 ............................................................................................................. 19 致 谢 ............................................................................................................. 19 参考文献 ......................................................................................................... 20 附 件 ......................................................................................................... 21

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