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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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smartantenna
Frank Gross所著《智能天线》 一书的源代码(a book of the source code for Frank Gross book Smart Antenna )
- 2014-12-26 09:07:25下载
- 积分:1
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audiowatermarkdetect
audio watermark detection
- 2013-11-15 19:26:13下载
- 积分:1
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dpqhv
Data analysis, plotting, etc., Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Calculation of growth, entry-level program grain.
- 2017-09-10 21:31:15下载
- 积分:1
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ssssssss
显得无聊自己做的一段代码显得无聊自己做的一段代码(ssssssssssssssssssssssssss)
- 2009-12-04 16:05:24下载
- 积分:1
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contrastImprove4
Contrast Improvement using Fuzzy Expected Value based on (Craig and Schneider 1992)
- 2013-01-28 00:37:57下载
- 积分:1
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bilateralFilter
bilateral filter matlab code
- 2009-10-21 15:18:40下载
- 积分:1
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animation-car-suspension
thi is an animation of car suspension system
- 2012-06-05 13:26:07下载
- 积分:1
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suanfa
数学建模中用到的各种算法,基本都在里面了,然后还有一些软件的教程,如MATLAB,LINGO(Various algorithms used in the mathematical modeling, the basic inside, and then there are some tutorials of software, such as MATLAB, LINGO)
- 2012-09-08 17:13:12下载
- 积分:1
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widebanddoa
采用前后向平滑以及最小冗余线阵的宽带源DOA估计仿真(Used before and after smoothing, as well as to the minimum redundancy linear array of broadband source DOA estimate Simulation)
- 2007-09-17 14:54:07下载
- 积分:1