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对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数(百分比表示)并进行重构, 最后计算重构图像的峰值信噪比(PSNR). -Two-dimensional discrete wavelet transform image transformed series is greater than or equal to 3, and then processing thresholding (threshold of about 10 or
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二维离散小波变换(Mallat快速算法)对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数(百分比表示)并进行重构, 最后计算重构图像的峰值信噪比(PSNR).
数据:灰度图像lena.bmp或其它图像, 滤波器系数可以调用matlab中的wfilters函数获得, wfilters函数的使用请在matlab中help wfilters.-Two-dimensional discrete wavelet transform (Ma
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bayes shrink is a thresholding method in wavelet based denoising of images
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SAR图像降斑,本文中,我们结合了小波变换进行图像的分解,并在分解的高频部分采用阈值去噪。-SAR image speckle reduction, this paper, we combine the wavelet transform for image decomposition and decomposition of the high-frequency part of the use thresholding.
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Signal denoising using HAAR wavelet transform with thresholding
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基于小波变换的随机噪声降噪的matlab 主要运用的方法有软阈值去噪法和硬阈值去噪法-Based on wavelet transform matlab random noise and noise reduction methods are mainly used soft thresholding method and hard thresholding method
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De-Noising of ECG Signal Using Translation- Invariant Wavelet
De-Noising Method with Improved Thresholding
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小波分解,提取系数,以及各种不同阈值去噪方法,比较全面,可以参考一下-Wavelet decomposition, extraction coefficient, and a variety of different thresholding methods, more comprehensive, you can refer to
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地震信号处理当中应用小波去除面波干扰,小波变换后进行阈值处理,反变换之后得到面波压制后的地震信号-Surface wave seismic signals obtained after the seismic signal processing to suppress them after removing the surface wave interference wavelet, wavelet transform thresholding, anti transformed
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Wavelet denoising
For using this code need to use signal toolbox and general toolbox in your matlab
In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size
512 by 512 and then generate noi
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利用聚类算法和小波分析进行声发射信号的阈值去噪
-The use of clustering algorithms and thresholding wavelet analysis of acoustic emission signals
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这个程序再matlab2012b版本上调试成功,以前在毕业设计的时候在网上找到的资料,希望对大家有用,基于MATLAB-GUI图形界面的数字图像处理软件 本系统设计基于GUI图形界面,用matlab语言编写代码,实现功能包括图象的读取、存储、显示、直方图均衡化、阈值化、小波分解、小波重构、加噪、去噪、平滑、锐化、边缘检测、图像分割等-This program debug version then matlab2012b success in graduate design information
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to fine image denoising using adaptive wavelet packet thresholding algorithm in matlab
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用最大最小值原理选择阈值,根据他給取的阈值,进行小波分析换阈值去噪-Select the minimum and maximum threshold values principle, according to his threshold to take, be changed thresholding wavelet analysis
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FISTA 压缩感知的图像使用快速迭代shrinkage-thresholding算法(小波sparsifying转换 傅氏域抽样磁共振成像和氡转换断层测量)-
FISTA compression perception of image using fast iterative shrinkage- thresholding algorithm (magnetic resonance imaging (fmri) wavelet sparsifying transform fourier-
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vc++MFC对话框中对数字图像的典型算法,里面涉及重点有图像的变换域处理(含傅立叶,小波,离散余弦算法),图像分割中包含大部分典型的分割算法(交互式阈值分割,霍夫变换,其他的多种算子),图像增强,图像复原(投影法..)图像匹配。还有形态学的一些算法处理,波峰波谷检测器,对图像处理学习非常有帮助-vc++MFC dialog typical algorithms for digital images, which involves the focus has transform domain i
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有关小波的去噪程序,有阈值去噪、硬去噪、软去噪-The wavelet denoising procedures, thresholding, hard-noising, soft de-noising
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:提出一种基于对偶树复小波块阈值的信号降噪方法,并将其成功应用于机械故障诊断中。机械设备的振动信号都或多或少地含有噪声,导致弱故障信息的提取一直是故障诊断的难点和热点。提出的降噪方法充分利用对偶树复小波变换的平移不变性和块阈值法的更优估计特性,可以获得比常规的小波降噪方法以及基于常规离散正交小波变换的 NeighBlock 降噪法更高的信噪比, 不仅能有效抑制高斯白噪声, 还能够去除冲击信号中的脉冲噪声。-:A denoising method of block thresholding bas
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小波算法的讲解分析基本立程序,包含软阈值等设置算法-Explain the basic wavelet algorithm analysis established procedures, including soft thresholding algorithms and other settings
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使用db5小波进行4层分解,并使用软阈值去噪法-4 layers using db5 wavelet decomposition and uses soft thresholding method
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