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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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Zoom-Strips-Plot
Plotting and examining speech waveforms is one of the most useful ways of understanding the properties of speech. This MATLAB exercise displays a speech waveform as both a single line waveform and as a running plot of speech samples (called a strips plot). This exercise allows the user to both plot and play user-selected regions of the waveform.
- 2014-02-14 18:32:21下载
- 积分:1
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thesis
FULL REPORT OF DPFC SIMULATION...
- 2015-01-03 14:48:09下载
- 积分:1
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0_02014032723194071801022207
一个单一的数字控制,非常简单的移动。MATLAB常用电路的设计方法(A single digital control, very simple mobile.Matlab common circuit design method)
- 2016-04-12 09:43:22下载
- 积分:1
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step_linear_predetict_and_Weiner_filter
一步线性预测与Weiner滤波的比较,含GUI界面.(Step linear prediction compared with the Weiner filter, with GUI interface.)
- 2010-07-23 22:18:25下载
- 积分:1
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suis2
output switching between 2 input switch
- 2009-11-20 11:41:01下载
- 积分:1
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function E
说明: 小波包分解重构后,求节点能量,matlab中运行很好(After the wavelet packet decomposition and reconstruction, the node energy is calculated, which runs well in matlab.)
- 2019-04-27 09:29:14下载
- 积分:1
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control_examples
control examples of a nuniversity laboratory
- 2010-05-26 23:26:31下载
- 积分:1
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123124
matlab程序设计的符号设计,有利于初学者了解MATLAB的编程思想与方法,使初学者快速入门(Matlab programming symbol design, be helpful for beginners to learn matlab programming thought and method, make the beginner quick start)
- 2014-10-29 19:51:20下载
- 积分:1
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manipulator-MPC-controller
机械臂模型预测控制,包含视觉伺服,使用机器人工具箱(Manipulator Simulation Based on Model Predictive Control,including visual servoing,using RTB tool box)
- 2021-04-07 22:59:01下载
- 积分:1