-
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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GUI_PR_SVM
具有图形操作界面的支持向量机多类分类实验系统.全部用Matlab实现,可以实现多种分类识别. 这是本人的毕业设计的附属程序(graphical interface with support vector machines more experimental classification system. All using Matlab, could achieve multiple classification. This is my graduation design procedures for the subsidiary)
- 2006-10-18 09:41:14下载
- 积分：1
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stap-jichu
说明： 空时信号处理的基础程序，在matlab上运行。(space-time adaptive processor)
- 2019-04-13 15:31:18下载
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CodeCoverageTool
The Code Coverage Tool (CCT) Matlab代码转化用于实时仿真的S函数。(The Code Coverage Tool (CCT) measures C statement coverage in code built as a Real-Time Workshop S-Function. It operates in conjunction with lcc (the C-Compiler that ships with the standard MATLAB installation).)
- 2009-09-11 17:49:11下载
- 积分：1
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matlab
matlab教程电子版，非常适合初学者，讲得很详细，非常好理解(Very suitable for beginners, very detailed, very good understanding)
- 2014-10-31 22:49:04下载
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Matlab工具箱应用 苏金明编
说明： matlab工具箱教程，例子详解，界面，操作教程，通俗易懂(Matlab toolbox tutorials, examples, interfaces, operating tutorials, easy to understand)
- 2019-03-25 21:52:41下载
- 积分：1
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趋势EA
说明： 趋势EA，不加仓，不网格，每单都带止损止盈，加载周期30分(Trend EA, no warehousing, no grid, stop-loss and stop-profit for each single, loading cycle 30)
- 2020-06-25 10:00:01下载
- 积分：1
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54x36
this is gabor technique
- 2009-12-13 10:56:38下载
- 积分：1
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matlab_ansys
matlab与ansys接口文献及源码多篇文档(matlab and ansys Interface documents and source code)
- 2013-10-06 21:32:40下载
- 积分：1
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DSSS
该程序主要说明直扩系统抑制正弦干扰方面的有效性。绘出不同幅度的正弦干扰信号及无干扰时的误码率.( This procedure mainly showed that expands the system to suppress the sine disturbance aspect straight the validity. Draws the different scope the sine unwanted signal and does not have when the disturbance error rate. )
- 2010-07-16 19:19:09下载
- 积分：1
