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1. 用imoise()函数给一幅数字图像加入’salt & pepper’和’Gaussian’噪声2）用3x3,5x5邻域平均平滑对图像进行处理3）用3x3,5x5中值滤波对图像进行处理，
2. 对一幅数字图像采用理想低通、Butterworth低通 、Gaussian低通滤波器进行平滑；对一幅数字图像采用理想高通、Butterworth高通 、Gaussian高通滤波器进行平滑。-1. With imoise () function to a digital image by a
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数字图像处理，频域滤波：理想低通滤波器、梯形滤波器、巴斯沃特滤波器-Digital image processing, frequency domain filtering: an ideal low-pass filter, ladder filters, Bath Water Filter
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频域低通滤波（理想低通滤波器、梯形低通滤波器、巴特沃斯低通滤波器、指数低通滤波器），频域高通滤波（理想高通滤波器、梯形高通滤波器、巴特沃斯高通滤波器、指数高通滤波器）-Frequency-domain low-pass filter (ideal low-pass filter, ladder low-pass filter, Butterworth low-pass filter, the index low-pass filter), frequency-domain high-pass f
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数字图像处理中的滤波和傅里叶压缩，包括理想低通滤波器，巴特沃茨高通滤波器，高斯带通滤波器，高斯带阻滤波器，FFT图像压缩。附原图像和处理后的图像截图。-Digital image processing in filtering and Fourier compression, including the design of an ideal low-pass filter, design Batewoci high-pass filter, bandpass filter design Gaus
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这是Matlab实现高通滤波和低通滤波的源代码，主要包括巴特沃斯低通滤波器、理想低通滤波器和高斯低通滤波器。-this is the source code that has implemented the BTW low pass filter and ideal low pass filter as well as gaussian low pass filter.
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理想低通滤波器的matlab实现代码，不是很完善，望见谅。-Ideal low-pass filter to achieve the matlab code, is not very perfect, hope will be forgiven.
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设计一个数字低通滤波器，来近似一个理想数字滤波器-Design a digital low-pass filter to approximate an ideal digital filter
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％ y=filter(sig,fmin,fmax)
％ 对信号进行理想滤波，可完成低通，带通
％ sig为被滤波信号
％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器
％ fmax为上限频率，fmax>fmin
％ fs为信号的采样频率
％ y为经过滤波后的信号
-％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be com
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首先介绍了图像中噪声的产生及与图像信号相关的噪声的分类，然后分别讨论了用于图象平滑去噪的空间域平滑处理：高斯滤波，超值像素滤波、中值滤波，和频率域平滑处理：理想低通滤波和Butterworth低通滤波处理。继而介绍了各种处理方法的程序实现，并对各种方法的去噪性能进行了比较。-this program introduce the generation ofimage noise and associated noise classification with the image signal ,
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实现有限冲激响应滤波器的设计，按照给定指标采用模拟低通滤波器（巴特沃思低通或者切比雪夫低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。-To achieve the design of finite impulse response filter, according to a given target analog low-pass filter (Butterworth low-pass or a Chebyshev low-pass) to
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Image Processing: Frequency Domain Enhancement
Generate noisy versions of the cameraman image by adding noise with the following characteristics:
Uniform with mean 40 and standard deviation 20
Gaussian of mean 40 and standard deviation
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利用MATLAB进行图像滤波技术，包含理想低通，高通滤波器和巴特沃思低通，高通滤波器的设计-Using MATLAB for image filtering techniques, including the ideal low-pass, high pass filter and Butterworth low-pass, high pass filter design
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时域滤波方法，频域滤波大全（包括中值滤波，均值滤波，理想低通，巴特沃斯低通 带通滤波器-Time-domain filtering, frequency domain filtering Daquan (including the median filter, mean filter, the ideal low-pass, Butterworth low-pass band-pass filter
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一个理想低通滤波器--使用matlab的实现
-An ideal low-pass filter- the realization of using matlab
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图像对数变换，图像拉伸和压缩灰度值，图像规定化，均衡化，位图切割，图像放大缩小，图像求反，平或滤波器，理想低通滤波器，理想高通滤波器，巴特低通滤波器-Logarithmic transformation of the image, the image gray value stretching and compression, image-oriented provisions, equalization, cutting bitmap, image zoom, image inverted,
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三维数字滤波器中的理想低通滤波器的matlab仿真及其结果-3 d digital filters in an ideal low-pass filter matlab simulation and the result
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此文档为自己编写高斯高、低通滤波器和理想高、低通滤波器，为matlab语言编写，可直接调用-This document is to write your own Gaussian high and low pass filter and a high ideal, low-pass filter for matlab language, can be called directly
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这是理想低通滤波器对图像进行滤波，包含滤波器的行数以及傅里叶逆变换-This is an ideal low pass filter for filtering the image, the number of rows including a filter and inverse Fourier transform
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理想低通滤波器，使用MATLAB实现理想低通滤波器的设计-Ideal low-pass filter, using MATLAB to achieve the ideal low-pass filter design
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Ideal Low-Pass Filter
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