摘要： 数字图像处理是指将图像信号转换成数字格式并利用计算机对其进行处理的过程。图像增强是数字图像处理的过程中经常采用的一种方法，它对提高图像质量起着重要的作用。这次我们使用的主要是Matlab软件。它是一种广泛应用于工程计算及数值分析领域的新型高级语言。我们可以利用MATLAB强大的矩阵计算功能来实现对图像的处理。本文的框架主要是先对图像增强的原理进行概述，然后对图像增强的方法分类并给出直方图增强，对比度增强，滤波增强等几种常用的增强方法的理论基础，通过Matlab实验得出的实际处理效果来对比各种算法的优缺点，讨论不同的增强算法的技术要点，并对其图像增强方法进行性能评价。23474
毕业论文关键词： 图像增强；对比度增强；直方图增强；滤波；MATLAB
Based on the matlab image enhancement processing
Abstract: Digital image processing refers to converting image signal into digital format and use computer to deal with the process. Image enhancement is digital image processing process often use a method, it plays an important role to improve the image quality. This time we use mainly by Matlab software. It is a widely used in engineering calculation and numerical analysis in the field of new type of high level language. We can take advantage of the powerful matrix calculation function of MATLAB to realize the image processing. The framework of this article is mainly on the first principle of the image enhancement, and then the image enhancement methods of classification and histogram enhancement, contrast enhancement, filtering enhancement enhancement methods such as theoretical basis, through practical processing effect of Matlab experiment compared the advantages and disadvantages of various algorithms, discussed the main technical points of the different enhancement algorithm, and its image enhancement method for performance evaluation.
Keywords: Image Enhancement; Hisogram Enhancement; Contrast Enhancement; MATLAB
目录
摘要 i
Abstract i
目录 ii
1 绪论 1
1.1 图像增强的背景及意义 1
1.2 国内外研究现状 1
1.3 图像增强的应用 2
2 图像增强的基本理论 3
2.1 图像增强的定义 3
2.2 图像增强的分类及方法 3
2.3 常用的图像增强方法 4
2.3.1 直方图均衡化 4
2.3.2 对比度增强法 4
2.3.3 平滑噪声 4
2.3.4 锐化 4
3 MATLAB软件介绍 5
3.1 MATLAB概述 5
3.2 MATLAB功能 5
3.3 MATLAB的特点 5
3.3.1 功能强大 5
3.3.2 效率高 6
3.3.3 运用灵活 6
3.4 MATLAB在图像处理中的应用 6
4 基于matlab数字图像增强的实现和仿真 8
4.1 对比度增强 8
4.2 直方图增强 9
4.2.1 直方图 9
4.2.2 直方图均衡化 10
4.3 滤波 11 基于MATLAB数字图像增强处理+源程序:http://www.751com.cn/zidonghua/lunwen_16551.html