## 图像去噪技术研究+文献综述

the Study of Image Denoising Technique
Abstract: The design study in detail the causes of the various effects of digital noise in the image quality, classified on the basis of mathematical models, from both time domain and frequency domain in-depth discussion of several basic and improved denoising. Basic noising methods such as mean filter, median filter, low-pass filter; improved algorithms such as weighted mean filter, progressive switching median filter, extremum median filter, adaptive median filtering denoising. With Matlab simulation experiments, according to the results of the comparative evaluation of the above algorithm simulation, come try a range of different methods of de-noising and analyze their strengths and weaknesses. After the study, after which a clear picture of what type of noise disturbance and the degree of interference, it can quickly select the appropriate filter according to people need technology to reduce the effects of blindness to dry, improve the image de-noising efficiency. 源`自*六)维[论*文'网www.lwfree.cn
Key words: Digital image denoising; salt and pepper noise; median filter; mean filter

1. 数字图像基础    2
1.1 数字图像的基本概念    2
1.2 图像处理的来源及其应用领域    2
1.3 数字图像的质量    3
1.4 直方图均衡    3
2. 认识噪声    5
2.1 噪声产生的原因及分类    6
2.2 简要介绍两种噪声    6
2.3 噪声的测试图及其危害    7
3. 图像去噪技术研究    7
3.1 空域去噪算法    7
3.2 中值滤波法    10
3.3 开关中值滤波    11
3.4 极值中值滤波    13
3.5 自适应中值滤波器    14
3.6 频域去噪算法    15
4. 结束语    17

1、为了使后续工作顺利进行起初我们需要先对图像处理的一些必要内容简要介绍。基本上都是一些概念性的,如对数字图像表示、数字图像的质量、直方图均衡法等进行说明。
2、介绍噪声产生原因[1]、分类、噪声模型，概率分布图，在此基础上建立去噪技术研究。
3、对几种比较常见噪声的去噪算法从空域和频域[2]两个方面进行详细说明。并通过Matlab仿真结果评价处理效果，力图直观生动地表达结论。提出针对不同噪声并根据人们的主观需要采用不同的去噪方法的思想。 图像去噪技术研究+文献综述:http://www.lwfree.cn/wuli/20190303/30754.html
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