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dft

于 2008-09-22 发布 文件大小:348KB
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下载积分: 1 下载次数: 1

代码说明:

说明:  基于dft的水印代码,水印注入、提取、防攻击测试(DFT-based watermarking code, watermark injection, extraction, anti-attack test)

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  • 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
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    小波变换何晓波图像处理,一个图像延拓的程序,用MATLAB语言编写。请珍惜(何晓波wavelet transform image processing, an image extension of the procedure, using MATLAB language. Please Value)
    2008-04-02 12:51:49下载
    积分:1
  • blitwave
    图像处理中的小波变换C++源代码,含有使用文档和例子,非常全面!(image processing wavelet transform C source code, documentation and with the use of examples, very comprehensive!)
    2006-10-04 14:24:17下载
    积分:1
  • ZX_TFPF
    基础时频峰值滤波程序,为初学者提供参考。(Based time-frequency peak filtering procedures, and provide a reference for beginners.)
    2012-04-11 17:19:55下载
    积分:1
  • matlab.rar
    matlab程序源代码,包括小波分析理论与MATLAB R2007实现所有代码。(matlab program source code, including all code wavelet analysis theory and MATLAB R2007.)
    2013-04-12 14:22:03下载
    积分:1
  • matlab程序
    小波变换(wavelet transform,WT)是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的"时间-频率"窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,能对时间(空间)频率的局部化分析,通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了Fourier变换的困难问题,成为继Fourier变换以来在科学方法上的重大突破。(Wavelet transform (WT) is a new transform analysis method. It inherits and develops the idea of localization of short-time Fourier transform and overcomes the shortcomings that window size does not vary with frequency. It can provide a frequency-dependent The Time-Frequency window is ideal for time-frequency analysis and processing of signals. Its main feature is that by transforming some features that can fully highlight some aspects of the problem, the localization of the time (space) frequency can be analyzed, and the signal (function) can be gradually and multi-scale refined by the scaling operation, finally reaching the high frequency Time subdivision, frequency subdivision at low frequencies, can automatically adapt to the requirements of time-frequency signal analysis, which can focus on any details of the signal to solve the difficulties of Fourier transform has become a major breakthrough in the scientific method since Fourier transform.)
    2018-03-05 14:32:13下载
    积分:1
  • 融合程序
    说明:  利用小波变换将不同分辨率的图像进行小波分解,将高频和低频系数分别处理融合,进行小波重构。(Image fusion with different resolutions based on wavelet transform.)
    2020-04-21 10:29:11下载
    积分:1
  • gabor_decon
    对地震数据进行gabor反褶积处理,有实例验证方法,简单易懂(The seismic data are processed by Gabor deconvolution.There are examples of methods to verify, easy to understand)
    2017-09-15 11:49:20下载
    积分:1
  • 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
  • Matlabwavelet
    第二代小波变换,包含常见的小波基函数和算例(The second generation wavelet transform contains the common wavelet basis functions and examples)
    2017-03-28 09:59:22下载
    积分:1
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