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DCT_SVD
说明: 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。(This paper presents an original video in the DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm for adaptive watermark embedding. Firstly, a video stream is divided into scenes, scenes of the video image is converted to the DCT-SVD domain, the watermark embedded in the largest singular quantification, the realization of the watermark signal. Furthermore, the experiments show that the algorithm meet the transparency requirements are met under certain robustness requirements, can resist the low-pass filtering, median filtering, salt and pepper noise, Gaussian noise, H.264 compression attacks and attacks and frame shear statistics attack.)
- 2010-04-18 18:42:59下载
- 积分:1
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mfiles
张志涌精通Matlab配套程序 涵盖所有的Matlab程序(Zhang Yong proficient in Matlab supporting procedures)
- 2012-04-24 22:11:21下载
- 积分:1
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FIR_dspbuilder
用dspbuilder实现32阶FIR滤波器(Achieved with a 32-order FIR filter dspbuilder)
- 2010-07-25 19:02:54下载
- 积分:1
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jEKF
一个关于卫星导航方面的ekf滤波程序,请大家互相共享一下(a satellite navigation on the ekf filtering process, please share what each other)
- 2007-04-22 12:08:12下载
- 积分:1
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9.-AM
Matlab code modulation AM
- 2014-09-03 23:40:53下载
- 积分:1
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piunang
混沌的判断指标Lyapunov指数计算,对信号进行频谱分析及滤波,构成不同频率的调制信号。( Chaos indicator for Lyapunov index calculation, The signal spectral analysis and filtering, Constituting the modulated signals of different frequencies.)
- 2016-12-21 20:26:27下载
- 积分:1
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杜芬方程解的小程序
Dufing方程是一种重要的动力系统山,是反映工程物理系统中非线性现象和混沌动力学行为的极其重要的方程式。通过Duffing方程可以探讨铁磁谐振电路中的分岔、拟周期运动、子谐波振荡。而在非线性与混沌系统的研究中,Duffing方程展示了丰富的混沌动力学行为。本文通过对不同情况下的Duffing方程进行分析,利用MATLAB进行仿真,从而对Duffing方程有进一步的了解。(Dufing equation is an important dynamic system mountain, which reflects the nonlinear phenomena and chaotic dynamics in Engineering Physics system. The bifurcation, quasi periodic motion and sub harmonic oscillation in ferromagnetic resonance circuit can be discussed through the Duffing equation. In the study of nonlinear and chaotic systems, the Duffing equation shows abundant chaotic dynamical behavior. In this paper, the Duffing equation under different conditions is analyzed and simulated with MATLAB, so as to have a further understanding of the Duffing equation.)
- 2020-12-30 09:28:59下载
- 积分:1
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lms1
自适应滤波器算法与实现——最小均方误差LMS(Adaptive filter algorithm- least-mean-square error LMS)
- 2009-10-26 21:29:40下载
- 积分:1
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shift_axis_to_origin
坐标变换,比较实用,程序完整,调试成功,可直接运行(shift_axis_to_origin2)
- 2010-10-21 21:14:48下载
- 积分:1
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ffffF1
说明: 空间谱估计的MUSIC算法的MATLAB仿真程序,请多多指教(space MUSIC spectral estimation algorithm MATLAB simulation program, the exhibitions)
- 2006-04-24 14:31:26下载
- 积分:1