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dcthide
dct隐写技术matlab实现资料。算法原理:通过在一个图像块中调整两个DCT系数的相对大小,隐藏秘密信息。
将载体图像分为8×8的块,做二维DCT变换
用来表示选中的两个系数的坐标对于第i bit秘密信息
if(要隐藏信息‘1’)
make
else
make
逆DCT变换,还原图像
(dct steganography matlab implementation information. Algorithm principle: an image block by adjusting the relative size of the two DCT coefficients, hidden secret information. The vector image is divided into 88 blocks, making two-dimensional DCT transform coefficients used to represent the coordinates of the selected two for the first i bit secret information if (to hide information ' 1 ' ) make else make the inverse DCT, restore image)
- 2013-11-01 19:47:13下载
- 积分:1
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-AWTMF
removal of impulse noise using adptive window trimmed filter
- 2014-01-23 15:44:17下载
- 积分:1
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DPSK
simulation of DPSK modulation in AWGN channel
- 2010-07-13 23:05:32下载
- 积分:1
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toolbox
说明: matlab工具箱函数汇总,初学matlab和使用matlab编程的人都很有用,编程的过程中不可以没有哦(matlab toolbox functions summary, and use matlab matlab programming beginners who can not, oh no)
- 2010-04-10 11:28:49下载
- 积分:1
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linproj
模型是结构体类型的线性投影Y = linproj(X, model) 其中W.model为线性投影矩阵, Y = model.W *X + model.b
b为偏差值( Description:
Y = linproj(X, model) linearly projects data in X such that
Y = model.W *X+ model.b
out_data = linproj(in_data, model) projects in_data.X
out_data.X = model.W *in_data.X+ model.b
out_data.y = in_data.y
Input:
model [struct] linear projection:
.W [dim x ncomp] Projection matrix.
.b [ncomp x 1] Bias.)
- 2011-05-01 18:11:47下载
- 积分:1
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shixianchuankou
用Visual Basic实现串行通信及其在直流调速系统中的应用.pdf(with Visual Basic and its serial communication system DC converter applications. Pdf)
- 2006-06-02 15:26:42下载
- 积分:1
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Kalmanprediction
利用Kalman预测对信号进行预测,信号源为《现代数字信号处理导论》上册,P202,习题5。(use of signal forecast Signal Source "Modern digital signal processing" Introduction to the first volume, P202, Exercise 5.)
- 2006-08-28 15:48:32下载
- 积分:1
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MATLAB
绘图典型程序 包括简单的二维 三维 六维(Typical drawing program includes a simple two-dimensional three-dimensional six-dimensional)
- 2012-06-26 08:35:41下载
- 积分:1
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ber
横向自适应滤波器和判决反馈自适应均衡器误码曲线学习比较
- 2010-10-20 21:53:12下载
- 积分:1
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CPPTemplates
学习C++ template的好资料,详细介绍了template的特性和用法(C++ tmeplate)
- 2014-01-21 21:49:19下载
- 积分:1