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IIR一阶低通滤波器
一阶高通滤波器
Notch 嵌波滤波器
Peak 滤波器
IIR低通滤波（Butterworth）
IIR高通滤波（Butterworth）
IIR带通滤波（Butterworth）
IIR带阻滤波（Butterworth）
IIR低通滤波（chebyshev 1）
IIR低通滤波（chebyshev 1）
chebyshev 中用到的函数 cheby.m-First-order IIR low-pass filter the fir
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图像压缩去噪增强锐化程序，供大家参考。 包括：数字图像矩阵数据的显示及其傅立叶变换 二维离散余弦变换的图像压缩 采用灰度变换的方法增强图像的对比度 采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 图像的自适应魏纳滤波 运用5种不同的梯度增强法进行图像锐化 图像的高通滤波和掩模处理 利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 利用巴特沃斯（Butterworth）高通滤波器对图
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这是一个很好的高通滤波器。希望给大家带来帮助。-high pass filtering
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We have added following files in matlab
1.global thresholding
2.Histogram equalization
3.low and high pass filtering
4.various masks
5.zooming
6.power law
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自编程实现fir滤波的低高带通和多带设计-Programming fir from low-high band-pass filtering and multi-band design
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Compression Denoising enhanced procedures for your reference. Include: digital image data display matrix and its Fourier transform two-dimensional discrete cosine transform image compression method using gray-scale transformation of the contrast-enha
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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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关于高通滤波的一些程序，有高通滤波后加中值滤波，还有理想高通滤波程序，以及高通滤波与维纳滤波结合的程序。希望能互相对您有帮助。-High-pass filter on some of the procedures, a high-pass filter Bo Houjia median filter, as well as the ideal high-pass filtering process has been high pass filter combined with the Wiene
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Enhance the image by, i) Low pass filtering, ii) High pass filtering, iii) Sobel operator, iv) Laplacian operator. Display the image and the result of the operation in each of the case.
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图像傅里叶变换所得对数频谱以及高通滤波所得图像-The number of Fourier transform images obtained on the income spectrum, and high pass filtering the image
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FFT Filters provide precisely controlled low- and high-pass filtering (smoothing and sharpening, respectively) using a Butterworth characteristic. The image is converted into spatial frequencies using a Fast Fourier Transform, the appropriate filter
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high pass filtering in images
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高通滤波器的构建。在频域对信号进行高通滤波-High-pass filter constructed. High-pass filtering the signal in the frequency domain
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Image Processing
Low pass filtering
High Pass filtering
DCT
Hartely
the output is a real image
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MATLAB的图像处理基础的资料\3
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
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通过对高通滤波器的理解，通过matlab编程，实现了窗函数法高通滤波器滤波-Through the high-pass filter to understand, through matlab programming, achieve a high-pass filter window function filtering
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多频混合信号，滤波器，最优化低通滤波，切比雪夫带通滤波，最优化高通滤波，matlab-Mixed multi-frequency signal, a filter, a low pass filter optimization, Chebyshev band-pass filter, high pass filter optimization, matlab
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Write MATLAB code that will do the following.
(a) Add Gaussian, Salt and Pepper and Speckle noise to image.
(b) Perform median filtering to remove noise and determine SNR and PSNR value.
(c) Perform average or low pass filtering to remove noise
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用于图像边缘提取。主要采用高通滤波的原理，用于简单清晰的边缘提取。-For image edge extraction. The main principle of using high-pass filtering, edge detection for simple and clear.
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FFT and inverse FFT are implemented in C.Low pass and high pass filtering using butterworth ,gaussian,ideal filters are implemented
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