基于Matlab的图像去噪算法仿真(图像噪声滤除研究) 摘 要：图像是一种重要的信息源，通过图像处理可以帮助人们了解信息的内涵。我们得到的图像或多或少的都带有噪声，而消除在图像采集和传输过程中而产生的噪声，保证图像受污染度最小，成了数字图像处理领域里的重要部分。本文主要研究分析了椒盐噪声的两种去噪方法，中值滤波法和小波变换法。首先介绍了图像噪声，其次详细阐述两种去噪算法的原理及特点，最后运用Matlab软件对一张含噪图片进行仿真去噪，并分析其结果。
关键词：图像噪声；中值滤波；小波变换；MATLAB
Research on Image Noise Filtering
Abstract: Image is an important information source, through image processing we can help people understand the connotation of the information. We get the image more or less with noise, and to eliminate the image acquisition and transmission process and the generated noise, ensure the image polluted degree is minimum, and digital image processing is an important part into the field . In this paper,we mainly studied and analyzed the salt and pepper noise two denoising methods, the median filtering method and wavelet transform method. Firstly,we introduce the image noise.secondly,we introduce two denoising algorithm principle and the characteristic, finally,using Matlab software containing noise image denoising for simulation, we analyze its results.
Key words：Image noise；Median filtering method；Wavelet transform method；MATLAB
目录
摘 要 1
引言 1
1.图像噪声 2
1.1图像噪声的来源 2
1.2常见的图像噪声 2
2．中值滤波算法 3
2.1中值滤波原理 3
2.2中值滤波的特性 4
3.小波变换算法 5
3.1小波变换基本原理 5
3.2小波变换的图像去噪优越性 6
4.基于Matlab的图像去噪算法仿真 6
4.1中值滤波算法的仿真 7
4.2基于小波变换算法的仿真 7
5.结论 8
参考文献 10
致谢 11,3354