【正文】 1基于 MATLAB 的數(shù)字圖像分析與邊緣檢測(cè) 摘 要： 圖像處理是用計(jì)算機(jī)對(duì)圖像進(jìn)行一系列的操作，一般操作是先將圖像數(shù)字化，即易于獲得某種預(yù)期結(jié)果的技術(shù)，其中邊緣檢測(cè)是圖像處理中必不可少的一步，采用微分算子檢測(cè)邊緣是最常用的，也是處理效果比較好的一種。MATLAB 圖像處理工具箱提供了邊緣檢測(cè)（edge）函數(shù)，它能利用多種算子進(jìn)行圖像的邊緣檢測(cè)，語(yǔ)言結(jié)構(gòu)簡(jiǎn)單，本文主要介紹了數(shù)字圖像處理主要研究領(lǐng)域中邊緣檢測(cè)的方法，并利用 MATLAB 圖像處理工具箱提供的函數(shù)處理圖片，對(duì)圖像進(jìn)行邊緣檢測(cè)，給出了各種算子檢測(cè)邊緣的結(jié)果并進(jìn)行相互比較。關(guān)鍵字： 圖像處理，MatLab ，邊緣檢測(cè)ABSTRACTImage processing is to analyze images by puters to achieve desired a series of results. Edge detection is an absolutely necessary step in image processing and the use of differential operators to detect edge is one of the most mon and effective methods. Image processing Mat lab Toolbox User’s Guide, Has provided the edge function, It can use many kinds of operators to carry on the image the edge examination. Edge detection is one of the main methods in the research field of digital image processing. The image processing function provided by the Mat Lab image processing tool box is employed to perform edge detection for image so that the program and processing result are obtained.2Key words: Image processing , MatLab， Edge detection 3獨(dú) 創(chuàng) 聲 明本人鄭重聲明：所呈交的畢業(yè)設(shè)計(jì)(論文)，是本人在指導(dǎo)老師的指導(dǎo)下，獨(dú)立進(jìn)行研究工作所取得的成果，成果不存在知識(shí)產(chǎn)權(quán)爭(zhēng)議。盡我所知，除文中已經(jīng)注明引用的內(nèi)容外，本設(shè)計(jì)（論文）不含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫(xiě)過(guò)的作品成果。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體均已在文中以明確方式標(biāo)明。本聲明的法律后果由本人承擔(dān)。 作者簽名: 二〇一〇年九月二十日 畢業(yè)設(shè)計(jì)（論文）使用授權(quán)聲明本人完全了解濱州學(xué)院關(guān)于收集、保存、使用畢業(yè)設(shè)計(jì)（論文）的規(guī)定。本人愿意按照學(xué)校要求提交學(xué)位論文的印刷本和電子版，同意學(xué)校保存學(xué)位論文的印刷本和電子版，或采用影印、數(shù)字化或其它復(fù)制手段保存設(shè)計(jì)（論文）；同意學(xué)校在不以營(yíng)利為目的的前提下，建立目錄檢索與閱覽服務(wù)系統(tǒng)，公布設(shè)計(jì)（論文）的部分或全部?jī)?nèi)容，允許他人依法合理使用。（保密論文在解密后遵守此規(guī)定） 作者簽名: 二〇一〇年九月二十日4目 錄基于 MATLAB 的數(shù)字圖像分析與邊緣檢測(cè) ..........................................................................................................1 課題概述 ..........................................................................................................................................................1 課題背景知識(shí) ..................................................................................................................................................2 MATLAB 簡(jiǎn)介 ..........................................................................................................................................2 數(shù)字圖像簡(jiǎn)介 ...........................................................................................................................................2 目的意義 ..........................................................................................................................................................3 小結(jié) ..................................................................................................................................................................32. 數(shù)字圖像處理 ........................................................................................................................................................4 基本概念 ..........................................................................................................................................................4 圖像增強(qiáng) ..........................................................................................................................................................5 直接灰度調(diào)整 ...........................................................................................................................................5 直方圖處理 ...............................................................................................................................................6 圖像濾波 ...................................................................................................................................................7 MATLAB 圖像處理 .........................................................................................................................................8 MATLAB 中的圖像文件格式 ..................................................................................................................9 圖像類(lèi)型 ...................................................................................................................................................9 圖像的幾何操作 .......................................................................................................................................9 圖像類(lèi)型的轉(zhuǎn)換 .....................................................................................................................................12 MATLAB 的二值圖像操作 ...........................................................................................................................13 態(tài)學(xué)簡(jiǎn)介 .................................................................................................................................................13 二值數(shù)學(xué)形態(tài)學(xué)的運(yùn)算函數(shù) .................................................................................................................14 圖像變換 ........................................................................................................................................................15 快速傅立葉變換 .....................................................................................................................................15 離散余弦變換 .........................................................................................................................................16 小結(jié) ................................................................................................................................................................173. 圖像分析—— 邊緣檢測(cè) ..................