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matlab_watermark
本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)
- 2010-12-24 11:11:10下载
- 积分:1
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Interface_matlab_VC
matlab与vc混合编排的问题,可以得到有效解决,详细介绍后还有编码实现哦(Matlab and vc mixed scheduling issues can be effectively resolved After detailed There Coding oh)
- 2007-06-13 21:03:12下载
- 积分:1
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gaot
说明: 遗传算法视频课配套程序,包括调用函数,目标函数,主函数等,非常全,可以运行(genetic algorithm program, with a detailed explanation of the objective function, Part II)
- 2019-06-02 09:42:10下载
- 积分:1
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db2tisheng
本程序是采用提升方式的db2小波变换 实现信号的分解 滤波 和信号的重构 方法准确可靠 (This procedure is used to enhance the way db2 wavelet transform signal decomposition and signal reconstruction filtering method is accurate)
- 2010-08-19 10:31:57下载
- 积分:1
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knn
knn 方法为k均值聚类用于数据点的分类(KNN method for k-means clustering for the classification of data points)
- 2008-05-06 11:57:40下载
- 积分:1
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receive_antenna
a recieve antenna using matlab
- 2009-07-14 06:38:43下载
- 积分:1
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ybdj
异步电动机状态方程模型,使用matlab S函数(asynchronis machine state equation model, using matlab S-function)
- 2010-07-06 15:31:35下载
- 积分:1
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designing_of_iir_highpass_filter
Designing a high pass filter using matlab.
- 2010-09-25 01:09:19下载
- 积分:1
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FoxLi
用于激光谐振腔的计算,采用早期的foxli算法。
- 2020-12-20 22:09:09下载
- 积分:1
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STBC-2T1R
STBC-ofdm程序源文件,可以供初学者学习交流使用(STBC-ofdm program source files, can be used for beginners to learn to share their)
- 2010-03-07 14:20:45下载
- 积分:1