-
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
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Chapter-12-Factor-Analysis
因子分析，有实例，推荐测试，下载。科学输出处理必备！(Factor analysis, there are examples of recommended tests, download. Scientific output processing necessary!)
- 2013-10-05 09:50:12下载
- 积分：1
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tracking1
用于图像处理等等，在MATLAB中实现移动目标的检测与辨识。(Used in image processing and so on, is realized in MATLAB moving target detection and recognition.)
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yangtiaoMATLAB
B样条小波 matlab实现 文献资料付程序(B-spline wavelet matlab to achieve)
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- 积分：1
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mianjiechuhuakuairunhua
面接触滑块润滑基于有限差分法，用于求解面接触滑块润滑的油膜厚度、油膜压力等(Lubricating surface contact with the slider based on the finite difference method for solving the contact surface of the slider lubrication film thickness, film stress, etc.)
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Combining_Cooperative_Relaying_with_Spectrum_Sensi
认知无线电的相关英文资料，经典，值得收藏！(English information related to cognitive radio, you can see!)
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Data-Generator
calssification algorithm3
- 2014-11-26 22:41:11下载
- 积分：1
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lmd
局部均值分解是由Smith提出的一种新的非线性和非平稳信号分析方法。由于LMD是依据信号本身的信息进行自适应分解的，产生的PF分量具有真实的物理意义，由此得到的时频分布能够清晰准确地反映出信号能量在空间各尺度上的分布规律。(Local mean decomposition is a new nonlinear and non-stationary signal analysis method proposed by the Smith. Since LMD information is based adaptive signal itself decomposed, resulting PF component has real physical meaning, when the resultant frequency distribution of the signal can be clearly and accurately reflect the spatial distribution of the energy of each scale.)
- 2013-12-03 15:19:12下载
- 积分：1
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ott12code
光镊计算工具箱，Queenland大学的 编码很犀利(Queenland University of encoding is very sharp optical tweezers Computing Toolbox)
- 2021-04-22 16:08:48下载
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15883830MPPT_Fuzzy_PO
说明： 光伏系统的mppt跟踪控制方法，该方法效果较好，值得一试(MPPT tracking control method of photovoltaic system, which has good effect, is worth trying)
- 2020-04-21 16:50:30下载
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