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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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matlab_1
matlab很多使用的画图小程序，非常使用，囊括了很多，运行可靠！(matlab drawing a lot of small programs used, very used, include a number of reliable operation!)
- 2010-12-01 21:06:19下载
- 积分：1
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xieya
基于matlab编程的叶片泵在过渡区中的卸压梯度曲线，卸压曲线。(Unloading pressure gradient curve of vane pump of MATLAB programming in the transition region based, unloading curve.)
- 2013-09-16 22:09:42下载
- 积分：1
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cdma_fenji
用MATLAB语言仿真实现CDMA系统中开环下发射分集的系统性能仿真(Using MATLAB simulation system performance simulation CDMA system under open-loop transmit diversity)
- 2013-12-07 11:14:53下载
- 积分：1
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OFDM_trans_recei
是整个光上OFDM的仿真，有清晰地注释，方便读者自己理解。(Is the entire OFDM simulation on the light, clearly comment, the convenience of the reader understand.)
- 2020-12-09 19:49:19下载
- 积分：1
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GS
说明： 激光变换中的GS算法,ORA算法，用matlab编程的。(Laser transformation in the GS algorithm, ORA algorithm, using MATLAB programming.)
- 2016-07-06 15:08:05下载
- 积分：1
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fmaxga
说明： 基于Matlab的函数优化遗传算法程序,包含了遗传算法实现的大部分步骤，而且有详细的注释.(Matlab functions genetic algorithm optimization procedures, including the genetic algorithm to achieve the most steps, and detailed notes.)
- 2021-04-06 14:39:03下载
- 积分：1
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simulation
说明： 一阶倒立摆仿真,MATLAB,仿真代码，原函数(failed to translate)
- 2010-04-11 05:15:06下载
- 积分：1
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GOA
it s a matlab GUI code for Monte Carlo simulation of scattering on rough surface.
- 2011-05-22 10:14:40下载
- 积分：1
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tezheng
这是我自己编写的提取brushlet能量相位特征的程序，然后有结果。(tezheng.zip)
- 2010-09-14 13:38:04下载
- 积分：1
