【正文】 摘要 數(shù)字圖像處理是一門(mén)新興技術(shù)，隨著計(jì)算機(jī)硬件的發(fā)展，其處理能力的不斷增強(qiáng)，數(shù)字圖像的實(shí)時(shí)處理已經(jīng)成為可能。由于數(shù)字圖像處理的各種算法的出現(xiàn)，圖像處理學(xué)科在飛速發(fā)展的同時(shí)逐漸向其他學(xué)科交叉滲透。數(shù)字圖像處理是一種通過(guò)計(jì)算機(jī)采用一定的算法對(duì)圖形圖像進(jìn)行處理的技術(shù)。這種處理技術(shù)已經(jīng)在各個(gè)領(lǐng)域上都有了比較廣泛的應(yīng)用。 MATLAB 是一種優(yōu)秀的數(shù)學(xué)工具，具有強(qiáng)大的運(yùn)算功能和圖形展示功能，使圖像處理變得更加的簡(jiǎn)單和直觀。本文介紹了 MATLAB 語(yǔ)言的特點(diǎn)，包括 MATLAB 軟件的簡(jiǎn)介和基本使用方法說(shuō)明。介紹了基于 MATLAB 圖像處理的實(shí)現(xiàn)和仿真，包含圖像的編輯、圖像的變形、噪聲與濾波以及頻譜分析等。 關(guān)鍵詞 : MATLAB。數(shù)字圖像處理 Abstract Digital image processing is an emerging technology, with the development of puter hardware and the processing capacity, realtime digital image processing has bee possible. Due to digital image processing algorithms to appear, with the rapid development of the subject of image processing, it has also gradually permeated to other subjects. Digital image processing is used by some algorithms puter graphics image processing technology, and it has been in many areas have a wide range of applications. MATLAB is an excellent math tool, and it has powerful puting and graphics display capabilities. So it makes images processing bee more simple and intuitive. This paper introduces characteristics of MATLAB Image Processing Toolbox for its digital image processing, including the introduction of MATLAB and its usage. The paper also introduces the simulation and analysis of image processing based on MATLAB, including the level of gray , brightness, scaling, rotating, noise, filtering, and frequency analysis. Key words: MATLAB 。Digital image processing 目 錄 一 緒論 ................................................................................................................. 1 （一）數(shù)字圖像處理概述 ...................................................................................................... 1 （二）數(shù)字圖像處理目的 ...................................................................................................... 1 （三） MATLAB 軟件基本知識(shí)介紹 ..................................................................................... 2 二 基于 MATLAB 數(shù)字圖像處理的實(shí)現(xiàn)和仿真 ................................................. 3 （一）使用 MATLAB 實(shí)現(xiàn)對(duì)圖像的基本運(yùn)算 .................................................................... 3 圖像縮放 ................................................................................................................. 3 圖像裁剪 ................................................................................................................. 5 圖像灰度調(diào)節(jié) ......................................................................................................... 6 （二）使用 MATLAB 對(duì)圖像進(jìn)行旋轉(zhuǎn)變形 ........................................................................ 7 （三）噪聲 .............................................................................................................................. 9 （四）均值濾波 .................................................................................................................... 11 （五）頻譜分析 .................................................................................................................... 12 三 總結(jié)與展望 .................................................................................................... 14 參考文獻(xiàn) ............................................................................................................. 15 致 謝 ................................................................................................................. 16 文獻(xiàn)翻譯 ............................................................................................................. 17 （一） 英文原文 .................................................................................................................... 17 （二）中文翻譯 .................................................................................................................... 20 一、 緒論 （一） 數(shù)字圖像處理概述 圖像是一種重要的信息源，圖像處理的最終目的就是要幫助人類理解信息的內(nèi)涵。數(shù)字圖像處理是將圖像信號(hào)轉(zhuǎn)化為數(shù)字信號(hào)并通過(guò)計(jì)算機(jī)記性去除噪聲、增強(qiáng)、復(fù)原、分割、提取特征等處理的過(guò)程。影像數(shù)字圖像處理的產(chǎn)生和飛速發(fā)展的因素主要有三個(gè)：一是計(jì)算機(jī)的發(fā)展；而是數(shù)學(xué)的發(fā)展（特別是離散數(shù)學(xué)理論的創(chuàng)立和完善）；三是廣泛的農(nóng)牧業(yè)、林業(yè)、環(huán)境、軍事、工業(yè)和醫(yī)學(xué)等方面的應(yīng)用需求的增長(zhǎng)。隨著計(jì)算機(jī)技術(shù)的迅猛發(fā)展，圖像處理技術(shù)已經(jīng)廣泛應(yīng)用關(guān)于各個(gè)領(lǐng)域。 本文所涉及 到的圖像處理都是數(shù)字圖像的處理，與模擬圖像相比，數(shù)字圖像具