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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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JPEGMatlab
JPEG编码源程序,基于Matlab编码(JPEG encoding source files, based on Matlab coding)
- 2007-01-16 09:52:00下载
- 积分：1
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l_y
这个程序得到的lambda_1不能当做最大lyapunov指数，因根据所作出的曲线选择线性区进行拟合，此处的处理是为了程序的方便 (This program was not as maximum lyapunov lambda_1 index, based on curve fitting due to the linear region selection made, in order to deal with here is a program of convenience " )
- 2014-11-25 15:31:08下载
- 积分：1
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GUIdemo
Test for A law decoder
- 2013-12-23 18:04:23下载
- 积分：1
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BinaryMorphology
Binary Morphological Techniques for Edge Detection.
- 2010-01-11 03:07:05下载
- 积分：1
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LDPCGF_q
non binary LDPC Codes:
creation des matrice génératrice et de parité
- 2011-05-04 17:41:08下载
- 积分：1
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粒子群+压缩感知+DOA
改进粒子群优化在压缩感知DOA估计中的应用_赵宏伟(Application of improved particle swarm optimization in DOA estimation of compressed sensing)
- 2017-08-05 13:23:03下载
- 积分：1
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bandstruct1d
This is a Matlab function that calculates the band structure for an one dimensional structure by means of PWE method. you will see more details about using it insid the file.
- 2010-02-22 13:43:41下载
- 积分：1
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matlab-time-frequency-analysis
电子工业出版社葛哲学的matlab时频分析及应用一书，配合matlab时频分析工具箱函数使用。(matlab time-frequency analysis and application. it s a pdf file.)
- 2012-04-20 18:20:25下载
- 积分：1
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genetic-to-optimize-lifetime-of-wsn
there is a new approach Using in Wireless sensor network to Clustering, in this approach we use GA algorithm to optimize the lifetime of network.
- 2012-12-31 05:40:46下载
- 积分：1
