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EZW_Matlab

于 2008-04-09 发布 文件大小:5KB
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代码说明:

  对输入的二维灰值图像,先进行提升Haar小波变换,再用经典的EZW算法对小波系数进行压缩,然后反变换重构原图像。(On the importation of two-dimensional gray value of images, first upgrade the Haar wavelet transform, and then classical EZW algorithm to compress the wavelet coefficients, and then inverse transform reconstruction of the original image.)

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  • wavelet_lab2
    对图像做二维离散小波变换,分解级数为3级,并重构图像,不直接调用Matlab的dwt和idwt函数。(pair of 2-dimensional images DWT, decomposition of the three series, and Image Reconstruction, not directly call Matlab dwt and idwt function.)
    2006-12-03 11:39:43下载
    积分:1
  • harmwave
    关于小波分析的程序,用于分析振动信号的程序,很好用(Wavelet analysis on the procedures used to analyze the vibration signal of procedures, very good use)
    2008-12-17 09:23:29下载
    积分:1
  • 61
    说明:  提出了一种结合SVD的小波变换方法,对其在外弹道测量数据中的野值剔除进行了研究。对观测数据进行小波分解,将小波分解后的近似分量和细节分量组合实现相空间重构,作为SVD方法的输入观测矩阵,根据奇异 熵增量准则,对奇异值进行筛选,根据SVD逆变换重构原信号。这一方法克服了Hankel矩阵相空间构建方法数据 端点失真问题。以小波分解后分量重构的相空间可以满足正交性,进一步提高了SVD进行数据降噪和野值检测的精度。仿真数据和试验数据处理结果证明了这一方法的有效性。(Proposed a method of combining the SVD wavelet transform its outer ballistic measurement data in excluding outliers were studied. Observational data on wavelet decomposition, wavelet decomposition of the approximate combined component and detail component to achieve the phase space reconstruction, as the input observation matrix SVD method, based on singular entropy increment standards, singular value filter, according to the inverse transform heavy SVD structure of the original signal. This approach overcomes the Hankel matrix phase space construction method data endpoint distortion. Wavelet decomposition component of reconstruction phase space satisfy orthogonality, to further improve the SVD for data noise reduction and outlier detection accuracy. Simulation data and experimental data processing results prove the effectiveness of this approach.)
    2013-06-02 11:10:21下载
    积分:1
  • Harmnic
    谐波小波包分解程序,并且将其应用于声发射信号特征提取(Harmonic wavelet packet decomposition procedure, and will be applied to acoustic emission signal feature extraction)
    2012-03-04 14:33:21下载
    积分:1
  • jixujiaoyu1
    很好的继续教育教材,提升素质必备啊!不可错过!十分的好(Good continuing education materials, enhance the quality of essential ah!)
    2015-03-02 19:51:23下载
    积分:1
  • wavelet-transform
    实现小波变换,小波滤波器,小波除噪等功能。(To achieve wavelet transform, wavelet filters, wavelet denoising function)
    2012-05-04 11:46:34下载
    积分:1
  • 线性褶积
    说明:  可以将目标矩阵进行线性褶积运算,用于数字信号处理(The target matrix can be linearly convoluted for digital signal processing)
    2020-03-17 14:20:01下载
    积分:1
  • Wavelab850
    说明:  MATLAB的软件包,用于小波变换,安装到自己的MATLAB工具箱中。(MATLAB software package for wavelet transform.)
    2020-06-21 07:20:01下载
    积分:1
  • Image-analysis
    基于小波变换的图像分析,它是在matlab中运行的(Image analysis based on wavelet transform, which is run in matlab)
    2012-05-10 19:32:37下载
    积分:1
  • wvd
    这是一个轴承故障分解程序,给予小波变换,小波去噪,小波重构与EMD相结合,有时频谱,边际谱,功率谱(This is a to bearing failure decomposition program given wavelet transform, wavelet denoising wavelet reconstruction combined with EMD, sometimes the spectrum, marginal spectrum, power spectrum)
    2012-11-26 15:15:09下载
    积分:1
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