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Rabaey---Digital-Integrated-Circuits-2e-(Prentice
imp book for cmos technology
- 2015-04-10 15:39:16下载
- 积分：1
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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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Image_Restoration
inverse filtering and wiener filtering
- 2010-09-28 13:28:02下载
- 积分：1
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fourieranalysisPWMsignal
基于MATLAB平台的PWM调制正弦波的快速傅里叶分析(his model simulates and computes Fourier analysis of PWM based sinusoidal waveform. Fundamental frequency can be changed in model properties. Amplitude modulation index and frequency modulation index can be adjusted in Simulink model directly.)
- 2013-11-12 14:19:21下载
- 积分：1
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CRC
说明： 通信系统中的CRC校验 降低误比特率 提高通信系统的执行效率(Communication Systems CRC, reduce the bit error rate the efficiency of communication systems)
- 2011-04-12 21:33:16下载
- 积分：1
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pre
code for preprocessing in matlab
- 2015-03-07 16:39:23下载
- 积分：1
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cost20_m
this project s about smart antennas
- 2011-01-31 13:31:37下载
- 积分：1
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2_POWER-QUALITY
POWER QUALITY IMPROVEMENT IN
GRID CONNECTED WINDENERGY
SYSTEM USING STATCOM
- 2014-09-25 20:09:53下载
- 积分：1
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design-of-communication-system
此文档具体说明了如何设计二进制psk通信系统以及使用相关软件进行仿真(design of communication system)
- 2011-11-18 10:28:28下载
- 积分：1
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FECG
fetal ecg detection using matlab
- 2012-10-03 20:45:23下载
- 积分：1
