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DWT

于 2012-06-01 发布 文件大小:53KB
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代码说明:

  基于小波变换的数字盲水印及对嵌入水印后图像的攻击检测(Attack detection based on wavelet transform digital blind watermark and the watermarked image)

文件列表:

DWT
...\coef2mat.m,285,2011-10-30
...\coefmodify.m,317,2011-10-30
...\experiment5_1.m,2407,2012-04-14
...\imgscram.m,341,2012-04-07
...\imgscraminv.m,378,2011-10-29

...\watermark.jpg

...\wmembed.m,916,2012-04-07
...\wmextract.m,377,2012-04-14

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  • XIAOBOFJ
    该程序可以实现对信号的小波分解、重构及各频带能量比分析(The program can achieve signal wavelet decomposition and reconstruction and the band energy than)
    2013-05-10 15:28:34下载
    积分:1
  • watermark_wavelet
    小波变换的数字水印算法,附有论文和源程序.(Wavelet Transform Digital Watermarking Algorithm with thesis and source code.)
    2021-01-14 13:38:47下载
    积分:1
  • denoise_image_with_two_methods
    分别用小波、分形的方法对图像进行去噪,并对这两种方法的结果进行了比较。(Wavelet, respectively, the method of fractal image denoising, and the results of these two methods are compared.)
    2008-05-17 09:07:43下载
    积分:1
  • vulnerable_watermark
    基于TS变换(一种整数变换)所实现的脆弱数字水印方法,讨论了整数水印在数字水印中的优点(transform (a Integer Transform), the fragile digital watermarking methods, Integer discussed in the digital watermark of the benefits of watermarking)
    2006-06-10 15:22:32下载
    积分:1
  • 202
    1、求冲激函数、阶跃函数及三角函数的小波变换 2、模极大值曲线 3、求它们的李氏指数(one, seeking impulse function, step function and trigonometry two wavelet transform, modulus maxima curve 3, Lee seeking their index)
    2007-03-13 11:29:45下载
    积分:1
  • PCMW2D_2
    移动窗口二维相关光谱方法matlab的实现,完全是自己参照公式编的哦。。移动窗口二维相关光谱是一种新的二维相关分析方法,它将移动窗口的概念和二维相关分析方法有效地结合在了一起,利用移动窗口将庞大的光谱数据按矩阵分割成若干个便于操作的子矩阵,用二维相关光谱分别处理,将得到的结果综合分析,用以光谱变量和扰动变量为坐标的等高图表现出来,从中可以非常直观地观察出光谱强度在扰动变量方向上的变化,进而找出引起光谱强度突变的特征扰动点。(Moving window two-dimensional correlation spectroscopy method matlab realization, is entirely their own formulas reference the Oh. . Moving window two-dimensional correlation spectroscopy is a new two-dimensional correlation analysis method, it will move the window concept and two-dimensional correlation analysis method is effective to combine together, using the moving window at the huge spectral data matrix is ​ ​ divided into a number of easy to operate a sub-matrix, respectively, using two-dimensional correlation spectroscopy process, comprehensive analysis of the results obtained for the spectral variables, and disturbance variables manifested contour map coordinates, which can visually observe the spectral intensity of the direction of the disturbance variable The change, then find mutations characteristic spectral intensity caused disturbance point.)
    2021-04-10 09:48:59下载
    积分:1
  • SIGNAL_edge_dwt
    利用小波变换模极大值方法进行信号检测的实验,很容易的检测出突变点(Wavelet transform modulus maxima method of signal detection experiments, it is easy to detect mutations)
    2010-09-20 09:24:10下载
    积分:1
  • shiyan
    shiyan图像分析及图像处理(时频变换)的小软件(Shiyan image analysis and image processing (time-frequency transform) a small software)
    2008-05-06 07:54:00下载
    积分:1
  • matlab
    本书简明扼要地介绍了时间序列及其相关领域的基本概念和基本理论,对ARMA序列预测、时间序列的统计分析、时间序列的时频分析和时间序列的小波变换等给出了有关分析计算方法,结合MATLAB编程应用,介绍了MATLAB时间序列分析有关函数的功能和用法,阐述了如何利用这些函数解决工程应用中的问题。(This book succinctly describes the time sequence and its related fields of basic concepts and theories of the ARMA series forecasting, time series statistical analysis, time series analysis and time-frequency wavelet transform of time series analysis and calculation are given about methods, combined with MATLAB programming applications, the introduction of time series analysis MATLAB functions about functions and usage, explains how to use these functions to solve engineering problems in the application.)
    2013-08-31 14:27:04下载
    积分:1
  • stft
    一维向量的离散短时Fourier变换函数。函数名:stft,输入:要处理的一维数组,加窗:矩形窗,窗口宽度:20。(One-dimensional vector of discrete short-time Fourier transform function. Function name: stft, enter: To deal with the one-dimensional array, plus a window: rectangular windows, window width: 20.)
    2008-04-16 15:42:25下载
    积分:1
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