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kalman_frequency_detecting_n22
Kalman filter, 2n_2n kalman filter which use for separate harmonic frequency in a continuous signal which include noise.
- 2011-04-07 19:22:44下载
- 积分：1
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Allan_Var
Allan方差的源代码，可计算Allan方差(Allan variance)
- 2011-05-13 12:39:19下载
- 积分：1
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A-Watermarking-Algorithm(MATLAB)--
盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲水印关系嵌入量化嵌入离散余弦变换离散小波变换
按这篇文章的算法，自己编的matlab,没有攻击时水印提取率为1，加水印后图像PSNR有45+，。有攻击后提取率也有0.9+。(Blind watermark extraction can be fulfilled without referring to the original host image. Therefore it hasmuch
prospective applications in the fields of information hiding and copyright protection. Based on blocking Discrete Cosine
Transform (DCT) and blocking DiscreteWaveletTransform (DWT), the proposed blind watermarking algorithm uses an
embedding strategy of adaptively selecting either relationship embedding or quantization embedding. The relationship em-
bedding comes from the observation thatboth themagnitudes of coefficients concerned in the relationship usually have thesame change trend when the image is attacked. This strategy remarkably improves the robustness ofwatermark extraction.In addition, dithermodulation is used in quantization embedding, bywhich the tradeoff between transparency and robus-tness ofwatermarking can be easily adjusted. Simulation results show that the algorithm is fairly robust against the attacks such as noise, filtering, compression, and contrast )
- 2013-04-14 16:15:47下载
- 积分：1
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WSCC
电力系统可靠性建模仿真分析，用matlab编程仿真分析(Power system reliability modeling and simulation analysis,Matlab programming simulation analysis)
- 2019-05-21 13:18:00下载
- 积分：1
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RF_MexStandalone-v0.02
说明： 随机森林主函数文件，应用matlab可以进行分类处理(Random forest main function file, which can be classified by MATLAB)
- 2018-12-29 10:22:43下载
- 积分：1
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character recognition using neural network
本文提出了一种基于全局和全局的卡纳达、泰卢固语和天成文书手写体数字识别方法
- 2022-04-09 23:34:32下载
- 积分：1
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Normal_Central_Moments
Set of functions to calculate the centroid, central moments and normalised moments of a binary image. Easy to understand, implemented in matlab
- 2009-03-31 01:10:52下载
- 积分：1
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matlab1
说明： MATLAB在数据的统计与分析和信号处理中进行应用
(Statistics and MATLAB data analysis and signal processing applied)
- 2010-04-15 13:01:29下载
- 积分：1
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fulile
对信号进行傅里叶变换的程序，附带实验报告，有兴趣的同学可以下载(Fourier transform of the signal process, with lab reports, students who are interested can download)
- 2011-05-08 17:10:31下载
- 积分：1
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vqonMatlab
1 训练
打开Matlab 使Current Directory为VQ所在的文件夹(比如：E:vq)
在Command windows中输入
">
- 2021-04-20 10:28:50下载
- 积分：1
