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2
说明： In this paper, a new scaling-based image-adaptive
watermarking system has been presented, which exploits human
visual model for adapting the watermark data to local properties
of the host image. Its improved robustness is due to embedding
in the low-frequency wavelet coefficients and optimal control of
its strength factor HVS point of view. Maximum-likelihood
(ML) decoder is used aided by the channel side information. The
performance of the proposed scheme is analytically calculated
and verified by simulation. Experimental results confirm the
imperceptibility of the proposed method and its higher robustness
against attacks compared to alternative watermarking methods in
the literature
- 2015-03-03 22:52:59下载
- 积分：1
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Binary_Search
说明： 二分法检索（binary search）又称折半检索，二分法检索的基本思想是设字典中的元素从小到大有序地存放在数组（array）中，
首先将给定值key与字典中间位置上元素的关键码(key)比较，如果相等，则检索成功；(Dichotomy search (binary search), also known as binary search, the basic idea of ??dichotomy is set to retrieve the dictionary from small to large elements stored in an orderly array (array), the first key the given value on the middle element of the dictionary The key code (key) comparison, if they are equal, then the retrieval success )
- 2011-03-24 10:54:46下载
- 积分：1
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matlab_video_data
matlab中有关视频图像处理的一些代码介绍，用法，以及例子。(The video image processing in matlab code, usage, and examples.)
- 2013-04-01 19:05:05下载
- 积分：1
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roughness
微波遥感中，粗糙度参数均方根高度、相关长度计算公式代码(Microwave remote sensing, the parameters of the root mean square roughness height, correlation length calculation formula of the code)
- 2021-05-13 15:30:02下载
- 积分：1
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ekf
ekf 何友的数据融合的关于ekf的例子的代码，自己写的，不够优化，有需要子函数的联系我(the code of ekf)
- 2012-01-26 11:36:32下载
- 积分：1
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MATLAB程序设计与应用（刘卫国第1版）
有关matlab的一本书籍，内容还不错。讲的很细致，也有部分例程。(The book of MATLAB is rich in content.)
- 2018-04-15 22:24:23下载
- 积分：1
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gyro_EKF
Aiming at determining the satellite attitude precisely，the gyros bias and m isa lignment were compensated in time by using the quaternion of star-sensor and extended Kalm an filter．The related module of the filter was derived．The theoretic accuracy of the algorithm was acquired from the numerical simulation． The effects of the star-senso r
misalignment on attitude determination were analyzed at last．
- 2011-05-11 16:00:42下载
- 积分：1
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gprmax
对GPRmax的数据进行成图的一些matlab程序(Some data on GPRmax programs into graphs)
- 2013-12-16 09:12:56下载
- 积分：1
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scheduling_chan
认知无线电中平均初始接入时延和平均切换时延的计算方法(Calculated the average switching delay and delay cognitive radio average initial access)
- 2021-03-22 14:59:16下载
- 积分：1
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Test_Code1
已知一个序列x(n)=0.5cos(0.55*pi*n)+cos(0.45*pi*n),时域FFT分析其频谱。
（1）使用不同宽度的矩形窗截断该序列为M点，取M分别为：20，40，160,观察不同长度对频谱影响；（2）使用哈明窗和凯泽窗重做；（3）对三种窗的结果进行分析比较；（4）总结窗类型和长度对频谱分析的影响。
(Known a sequence x (n) = 0.5cos (0.55* pi* n)+ Cos (0.45* pi* n), time-domain FFT analysis of its spectrum. (1) use a different width of the rectangular window of the sequence for M cut-off point, take M are as follows: 20,40,160, observing the impact of different lengths of the spectrum (2) the use of Hamming window and the Kaiser window redo (3 ) on the three windows analyzed and compared the results (4) summarize the type and length of window for spectrum analysis.)
- 2007-10-30 17:08:01下载
- 积分：1
