摘要数字图像处理是一门新兴技术,随着计算机硬件的进展,其处理能力的不断增强,数字图像的实时处理已经成为可能。由于数字图像处理的各种算法的出现,图像处理学科在飞速进展的同时逐渐向其他学科交叉渗透。数字图像处理是一种通过计算机采纳一定的算法对图形图像进行处理的技术。这种处理技术已经在各个领域上都有了比较广泛的应用。MATLAB 是一种优秀的数学工具,具有强大的运算功能和图形展示功能,使图像处理变得更加的简单和直观。本文介绍了 MATLAB 语言的特点,包括 MATLAB 软件的简介和基本使用方法说明。介绍了基于 MATLAB 图像处理的实现和仿真,包含图像的编辑、图像的变形、噪声与滤波以及频谱分析等。 关键词: MATLAB;数字图像处理AbstractDigital image processing is an emerging technology, with the development of computer hardware and the processing capacity, real-time digital image processing has become 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 computer 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 computing and graphics display capabilities. So it makes images processing become 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 录一 绪论......................................................................................................................1(一)数字图像处理概述...