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二维小波变换
- 关于二维小波变换的程序 [精华] 说明:此算法重在概念,速度并不是很快。因为FOR循环的缘故。此程序从循环矩阵的观点出发,把圆周卷积和快速幅里叶变换建立了联系。实现了分解和无失真重构。它只做了一层分解,即将256x256图形分解成为64x64的四个图形,避免了使用WKEEP()的困惑。主要思想为用小波滤波器族构造正交阵W,变换写为B=W*A*W ,反变换为:A=W *A*W,这与所有正交变换无异。W为循环正交矩阵,因此可用FFT实现快速运算,难点就在重构矩阵上。若用矩阵概念明确,一个
利用haar小波变换对图像进行分解与重构
- 这个程序是用harr小波对图像进行分解和重构,是个可执行的源代码,已通过调试,大家可用来学习-this procedure is right Harr wavelet image decomposition and reconstruction, is the source of executable code, the debugging, you can be used for learning
谐波小波包分解
- 谐波小波包分解程序,希望对大家有用
小波函数mallat算法
- 小波函数mallat算法,分解、重构
可分离二维二进小波的快速分解与重构算法
- 可分离二维二进小波的快速分解与重构算法
multipointmanualprocess.rar
- 谐波小波程序变参数的积分程序多点人工生成地震波程序低通滤波程序经验模式分解降噪程序,Harmonic Wavelet programmed parameters points integration process of artificial seismic waves to generate low-pass filtering process procedures empirical mode decomposition noise reduction procedure
homework.m.rar
- 小波图像的分解与合成,采用非标准小波变换方式,在四个不同的窗口分别对输入的图像进行三级小波变换的全过程,Wavelet image decomposition and synthesis using wavelet transform non-standard way, the window in four different input images were carried out on three levels of the whole process of wavelet transfo
Wavelets.rar
- 小波去噪的分解与重构示例,里面附带数据文件,Wavelet Denoising sample decomposition and reconstruction, which attached to data files
test4_wavelet_DIPUM.rar
- 用二维小波包分解得到水平垂直细节系数,据此组合合成图像的边缘,并与传统算子方法对比,Two-dimensional wavelet packet decomposition has been the level of vertical detail coefficient, which images the edge of combinatorial chemistry and operator with the traditional methods
wavelet_denoise.rar
- 小波消噪。包括小波的分解、重构、滤波等程序,Wavelet de-noising. Including the wavelet decomposition, reconstruction, filtering and other procedures
packetdaima
- 小波包分解去噪c++源程序,包括信号的小波包分解,最优树选择,以及重构-Wavelet packet denoising c++ Source, including the signal wavelet packet decomposition, optimal tree selection, as well as the reconstruction of
Wavelet_Decomposition_For_Images
- 小波算法,用于小波分析,数据,图像等。一维,二维数据的小波分解。(Wavelet algorithm is used for wavelet analysis, data, images and so on. Wavelet decomposition of one dimensional and two dimensional data.)
mlsoft
- 基于软阈值的提升小波去噪程序,用于信号处理(A soft threshold based lifting wavelet de-noising program for signal processing)
waveform
- 利用Matlab改写的一个小波降噪方法对信号降噪的源码,效果还不错,欢迎使用。(The use of Matlab rewrite a wavelet denoising method for signal reduction of the source code, the effect is good, welcome to discuss.)
二维离散小波变换
- mallatm.m:一维mallat快速分解函数 mallatr.m:一维mallat快速重建函数 mallatm2d.m:二维mallat快速分解与合成算法的演示函数,要调用mallatm.m与mallatr.m 在matlab命令行键入(Two dimensional discrete wavelet transform)
cc_wavelet
- 对高光谱数据进行1-12层小波分解和重构,并与实测数据相对应进行相关性分析(The hyperspectral data is decomposed and reconstructed by 1-12 layer wavelet and correlated with the measured data)
matlab源文件包
- 小波变换相关函数在matlab中如何应用 小波分解和重构过程 小波变换在图像压缩、融合等方面的应用并用matlab来实现(How to apply wavelet transform correlation function in MATLAB Wavelet decomposition and reconstruction process The application of wavelet transform in image compression and fusion i
EWT
- 此压缩文件包含经验小波分解与重构,以及频带划分方法的汇总(This compressed file contains empirical wavelet decomposition and reconstruction, and a summary of frequency band division methods.)
cal_waveletfeature
- 计算小波包特征,小波分解得到能量比、小波熵。小波熵是一个统称,不是一种具体的熵算法。(The wavelet packet features are calculated, and the energy ratio and wavelet entropy are obtained by wavelet decomposition. Wavelet entropy is a general term, not a specific entropy algorithm.)
小波降噪
- 小波降噪的方法有多种,如利用小波分解与重构的方法滤波降噪、利用小波变换模极大值的方法去噪、利用信号小波变换后空域相关性进行信噪分离、非线性小波阈值方法去噪、平移不变量小波降噪法,以及多小波降噪等等。归结起来主要有三类:模极大值检测法、阈值降噪法和屏蔽(相关)降噪法。其中最常用的就是阈值法去噪,其基本思想就是利用图像小波分解后,各个子带图像的不同特性选取不同的阈值,从而达到较好的降噪目的