-
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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periodic_pipe
This programm is main to deal with a periodic flow in the pipe which is part of it
- 2013-07-16 21:14:04下载
- 积分：1
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example1_remarkb
wilson-theta和Newmark-beta求解动力学振动方程,三自由度系统的脉冲响应(wilson-theta and the Newmark-beta to solve the vibration equation of dynamics. three degrees of freedom the system impulse response
)
- 2011-07-13 17:38:10下载
- 积分：1
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code
wireless sensor network manualy designed matlab code for research oriented process
- 2014-12-03 18:26:14下载
- 积分：1
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testSamples
TEST SAMPLES TO ECG IN MATLAB
- 2015-04-06 01:33:32下载
- 积分：1
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1-chapter
MATLAB GUI设计学习手记（第二版）源程序 第1章
本书推荐的学习方法：
1）若您是一个MATLAB初学者，且有充裕的时间来学习GUI设计，您可以从本书的第1章开始循序渐进地学习。
2）若您是一位MATLAB初学者，且时间非常紧迫，建议您先学好第1章，然后依次学习第4章、第5章和第6章，其他章节请根据项目需要有选择性地学习。
3）若您已经掌握了MATLAB的基础语法知识，有一定的MATLAB编程基础，也请浏览一下第1章的内容，尤其是专题分析部分。然后先学习本书第4、5和6章，其他章节请根据项目需要有选择性地学习。
4）若您是一位MATLAB GUI方面的专家或老师，您可以将本书作为一本教学的参考书，本书内容全面、讲解详实、代码精炼，是不可多得的GUI宝典。
(MATLAB GUI design learning Hearts (second edition) source Chapter 1 book recommended learning methods: 1) If you are a MATLAB beginners, and there is plenty of time to learn GUI design, you can start from Chapter 1 of the book The step-by-step learning. 2) If you are a MATLAB beginners, and the time is very tight, it is recommended that you first learn to Chapter 1, followed by learning Chapter 4, Chapter 5 and Chapter 6, in other sections based on project needs selective learning . 3) If you have mastered the basic grammar of the MATLAB, the MATLAB Programming Fundamentals, please visit the Chapter 1, in particular thematic analysis section. First learning book chapters 4, 5 and 6, then the other chapters selective learning based on project needs. 4) If you are an expert or teacher of a MATLAB GUI, you can book as a teaching reference books, the book is comprehensive, explain the detailed, refined code, is a rare GUI canon.)
- 2012-11-15 18:26:06下载
- 积分：1
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SoundAcquisition
在matlab中利用声卡对语音信号进行实时采集，并采集波形图，对采集信号进行频谱分析，画出频谱图，能查找峰值频率。有详细的注释和参数调整说明(In Matlab using real- time audio of the speech signal acquisition and acquisition waveform, Spectral Analysis of Signals and draw the spectrum, can find the peak frequency.A detailed description of the annotation and parameter adjustment)
- 2015-06-11 17:23:58下载
- 积分：1
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DOAlocation
doa节点定位算法的matlab实现；doa算法仿真。(doa node localization algorithm matlab implementation doa based on simulation.)
- 2010-08-05 12:11:48下载
- 积分：1
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ART2Function
ART2网络的MATLAB程序，自己编写的。最近一系列的文章都是用这个作的实验。在科学网可以找到本人博客下载相关论文(ART2 network MATLAB procedures, I have written. The recent series of article are made using this experiment. Net can be found at science blog I download related thesis)
- 2009-03-13 00:24:35下载
- 积分：1
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ShuaZiMoXing
稳态侧偏刷子模型，考虑了垂直载荷分布情况的不同，分别进行了程序计算。(Tire model for the shuazi model, it can calculate for differnt Fz)
- 2012-05-26 12:56:29下载
- 积分：1
