-
dct
M=512 原图像长度
N=64
K=8
I=zeros(M,M)
J=zeros(N,N)
BLOCK=zeros(K,K)
显示原图像
I=imread( f:ceshiyuanshitu.bmp )
figure
imshow(I)
xlabel( 原始图像 )
显示水印图像
J=imread( f:ceshilogistic_nuaa64.bmp )
figure
imshow(J)
xlabel( 水印图像 )
嵌入水印
tem=1
for p=1:N
for q=1:N
x=(p-1)*K+1
y=(q-1)*K+1
BLOCK=I(x:x+K-1,y:y+K-1)
BLOCK=dct2(BLOCK)
if J(p,q)==0
a=-1
else
a=1
end
BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01)
BLOCK=idct2(BLOCK)
I(x:x+K-1,y:y+K-1)=BLOCK
end
end
显示嵌入水印后的图像
figure
imshow(I)
xlabel( 嵌入水印后的图像 )
imwrite(I, f:ceshiembedded.bmp )
- 2010-06-13 18:43:39下载
- 积分：1
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AWGN
该文件是包括正弦信号通过加性噪声信道的时域输入波形和输出波形图(The file includes a sinusoidal signal by the time domain input and output waveforms of the additive noise channel)
- 2012-11-11 19:29:51下载
- 积分：1
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Opportunistic Routing
Markovian_model_for_Opportunistic_Request_Routing-maste的matlabr例程，同时还有相关的论文。《Analyzing Opportunisitic Request Routing in Wireless Cache Networks》(A simulation of Markovian_model_for_Opportunistic_Request_Routing based on matlab)
- 2019-01-06 20:03:46下载
- 积分：1
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rehdb3
这是一个HDB3译码的matlab程序，可进行信源译码，可以做为一个子程序(This is a HDB3 decoder matlab program source decoder can be used as a subroutine)
- 2012-09-11 09:41:58下载
- 积分：1
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Tsai
本代码图象轮标定代码，用ＭＡＴＬＡＢ软件编写(Round of the code image calibration code, using MATLAB software to prepare)
- 2008-03-21 19:18:52下载
- 积分：1
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SpinnerDemo123
utility that demonstrates usage of Java Spinner controls in Matlab
- 2010-11-18 07:10:42下载
- 积分：1
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upf_demos
粒子滤波改进算法仿真比较，我觉得很好用，大家快下载，贝叶斯滤波适合非线性和非高斯环境，这种非线性统计理论很先进(Improved particle filtering algorithm for simulation and comparison, I feel useful, we quickly download, Bayesian filtering for nonlinear and non-Gaussian environment, which is very advanced statistical theory of nonlinear)
- 2010-12-21 14:28:58下载
- 积分：1
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TDOA2
关于定位技术的一个最新的Tdoa方面的matlab代码(Positioning technology an up-to-date the TDOA aspects of matlab code)
- 2013-04-20 14:09:43下载
- 积分：1
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Binary-particle-swarm-source
本文给出了二进制粒子群算法的源程序，并运用实例进行了验证。(In this paper, the source code of the binary particle swarm algorithm is given and verified by an example.)
- 2017-04-16 23:36:27下载
- 积分：1
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checkValidity
validity check for polar to cartesian conversion
- 2014-08-17 22:28:43下载
- 积分：1
