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HEU_KMSActtivator
说明: 本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)
- 2021-04-15 12:12:28下载
- 积分:1
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a
说明: 两种算法的简单版程序,还有其中一部分说明及仿真图(Simple version of the two algorithms procedures, as well as part of the description and simulation of Figure)
- 2010-04-27 15:33:19下载
- 积分:1
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grating
matlab off-ais grating
- 2013-05-20 13:25:45下载
- 积分:1
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final-project
speaker recognition system
- 2010-05-09 18:37:07下载
- 积分:1
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L-shaped-beam-DOA-estimation
基于增广矩阵束的L型阵列的二维DOA估计MATLAB程序(Based on the augmented matrix L-shaped beam two-dimensional array DOA estimation MATLAB program)
- 2013-09-11 09:38:25下载
- 积分:1
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pre_control
预观控制,以倒立摆模型为研究对象,通过预观控制方式实现倒立摆的平衡(Preview control inverted pendulum model for the study, pre-view of control inverted pendulum balance)
- 2013-04-12 20:57:12下载
- 积分:1
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故障诊断相关的MATLAB代码
故障诊断相关的MATLAB代码,主要有神经网络算法的m文件(MATLAB Code Related to Fault Diagnosis)
- 2020-06-18 02:40:02下载
- 积分:1
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程序three
自动泊车matlab自动泊车程序设计其中的一个程序。(Automatic parking Matlab automatic parking program design one of the programs.)
- 2021-03-24 17:29:14下载
- 积分:1
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weibgf.m
matlab code diagnostic by weibull function
- 2011-04-20 16:44:09下载
- 积分:1
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Clustering_Coefficient
根据邻接矩阵计算网络的聚类系数。输入为邻接矩阵输出为整个网络的聚类系数(cluster coefficient)
- 2021-04-19 15:18:51下载
- 积分:1