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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
一维小波逆变换源程序清单
- 小波逆变换的源代码-inverse wavelet transform source code
一维小波变换
- 本程序用于实现一层小波变换,即在频域对图像进行处理-the procedures used to achieve a layer of wavelet transform, in the frequency domain for image processing
3Model.rar
- 基于小波变换的三维模型提取技术的毕业论文,包括代码和答辩ppt.1.实现了三维模型的表示和规范化预处理过程,在此基础上,开发了进行检索实验的可视化特征提取实验平台。 2.结合球面调和变换获取旋转不变量具有降低特征向量维数的特性,实现了基于光线投射的特征提取方法,通过检索评价实验确定了参数的最佳取值。 3.分析了基本的光线投射方法和改进的光线投射方法的缺陷,提出了一种基于三维小波变换的特征描述方法。对光线投射算法进行了扩展,将切比雪夫采样点序列进行离散小波变换,然后利用球面调和变换获得旋转不变
dwt.rar
- 一维离散小波变换,输出项是一维离散小波变换的小波变换系数,输入值是小波名,信号序列,The dwt command performs a single-level one-dimensional wavelet decomposition with respect to either a particular wavelet ( wname , see wfilters for more information) or particular wavelet decomposition filte
15615
- matlab一维提升小波变换,二维提升小波变换-matlab one-dimensional wavelet transform, two-dimensional lifting wavelet transform
morlet
- 构造的morlet小波基进行一维连续小波变换-continuous wavelet transform
一维和二维小波变换的VC实现
- 小波算法在vc的具体实现.小波算法在图像处理,视频压缩,特征提取等领域有广泛应用,程序以灰度图像为数据分别演示了一维和二维小波变换,希望对大家有所帮助.谢谢!-vc wavelet algorithm in a concrete realization. Wavelet algorithms in image processing, video compression, feature extraction and other fields have extensive application
matlab97flift
- 这是小波变换的matlab程序,一维二维的情况下都有-This is the wavelet transform matlab procedures, one-dimensional two-dimensional case have
matlab97lift
- 离散小波变换的matlab程序,包括一维与二维的-Discrete wavelet transform matlab procedures, including one-dimensional and two-dimensional
WavelAlg
- 本系统是一个基于VC++的小波算法,包含两个变换,一维小波变换和二维小波变换,对图像处理和视频压缩方面有很广泛的应用。-Based on this system is a VC++ Wavelet algorithm, consists of two transformations, one-dimensional wavelet transform and two-dimensional wavelet transform of image processing and video compr
WVLT
- 子目录说明: \wvlt\lib\ 中存放的一些基本的小波基定义和相关库函数; \wvlt\wrefine\ 中存放的是小波基细化的程序代码; \wvlt\wxfrm\ 中存放的是一维小波变换的数学实现。-Subdirectory note: wvltlib stored in some of the basic definition of wavelet and related library function wvltwrefine is stored in wavelet r
scilab-dwt(haar-daubechies)
- 是scilab的源程序,是一维的haar小波变换和一维的daubechies小波变换。已经调试过,可以使用。里面还附有卷积的源代码。-Is the scilab source is one-dimensional haar wavelet transform and one-dimensional wavelet transform daubechies. Have been debug, you can use. There was also accompanied by convolutio
DWT1D
- 一维正交小波变换(二进小波变换)包括分解与重构-this program compute the one-dimensional orthogonormal wavelets transform of the signal in a data file and reconstruct the original signal from its wavelet decomposition using the Mallat s pyramidal algorithm.
WaveletTransformsinMATLAB
- 执行一维和二维小波变换在MATLAB环境中。十几包括的小波函数有: * Haar * Daubechies 1-6 * Symlets 1-6 * Coiflets 1 and 2 * Splines and reverse splines * CDF 9/7 and Le Gall 5/3 * S+P wavelets (2,2), (4,2), (4,4), (6,2), and (2+2,2) * Two Ten "TT" * Low-complexit
WVLT
- 小波变换的VC源代码,包括各种小波基的定义和一维小波变换的实现-wavelet transform
456
- 一维小波变换用于奇异检测。采用不同消失矩的小波分解。-Singularity detection for 1-D signal using wavelet maxima.Demo for vanishing moment.
wavfft
- 对一个一维信号进行傅里叶变换和小波变换去噪,并比较两者的优劣,对小波变换初学者有很大帮助。-For a one-dimensional Fourier transform and wavelet signal denoising, and compare the advantages and disadvantages, the wavelet transform of great help for beginners.
myCwt
- 一维小波变换的c实现,包括harr小波、mexhat小波、以及morlet小波等-continuous wavlet transform,including harr、mexhat and morlet
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)