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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分:1
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onephase
单相多电平变换器的simulink仿真,总共八个模块级联,采用载波相移调制策略。(Single-phase multi-level converter simulink simulation, a total of eight modules cascade,uses carrier phase shift modulation strategy.)
- 2020-11-02 11:19:53下载
- 积分:1
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format_change
format changer
- hex to decimal
- decimal to hex
- 2009-12-06 16:21:31下载
- 积分:1
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Robotics_PID_Controllers
PID Model/control based control diagram implemented in Simulink
- 2011-04-26 09:10:30下载
- 积分:1
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evolve
matlab pso-xc evolve.m
matlab pso-xc evolve.m
- 2013-10-24 22:33:11下载
- 积分:1
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icpMATLAB
基于vs+MATLAB的icp基本演算法(Based on the icp vs+ MATLAB basic algorithm)
- 2015-04-01 11:54:27下载
- 积分:1
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Subtractive-Clustering
基于减法聚类及自适应模糊神经网络的
短期电价预测.(Short-term price forecasting Subtractive Clustering and Adaptive Fuzzy Neural Network.)
- 2014-10-27 17:21:08下载
- 积分:1
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DataRead
matlab 读取振动信号数据程序 适合了解振动信号结构(头文件)(The MATLAB reads the data of the vibration signal of program suitable for vibration signal structure (header))
- 2015-03-08 20:43:22下载
- 积分:1
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Kalman_MATLAB
Kalman滤波器经典入门matlab程序(Classical Kalman filter matlab entry procedures)
- 2008-02-29 15:25:35下载
- 积分:1
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matlab
matlab UIcontrol界面编程实例代码(matlab gui problem example)
- 2013-01-04 22:44:25下载
- 积分:1