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matchfilter_sin_signal
一个简单正弦信号经过匹配滤波后计算SNR，并绘制时频域图片(Calculated a simple sinusoidal signal after matched filtering SNR, and draw the frequency domain picture)
- 2012-09-06 23:38:40下载
- 积分：1
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Stationary_Series1_AR1
演示AR序列的特征值、自协方差函数和谱密度。程序是开放的，可以修改参数(Eigenvalues demo AR sequence autocovariance function and spectral density. The program is open, you can modify the parameters)
- 2013-12-22 18:04:12下载
- 积分：1
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MATLAB_program_graphics_design_documents
MATLAB程序图形设计文档MATLAB program graphics design documents(MATLAB program graphics design documents MATLAB program graphics design documents)
- 2010-08-02 10:32:59下载
- 积分：1
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VIBGYORcolorseg
VIBGOR color segmentation
- 2009-11-05 23:53:42下载
- 积分：1
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matlab_chepaishibie
国外的车牌识别算法，包括灰度、二值化、倾斜矫正、定位、字符分割、字符识别等等(Foreign license plate recognition algorithms, including grayscale, binary, tilt correction, positioning, character segmentation, character recognition, etc.)
- 2014-03-27 21:39:30下载
- 积分：1
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PlotStarN
说明： 画n角星,其中n为大于5的奇数(偶数可以看成两个奇数角星的叠加)
比如6角星,可以看成两个三角星的叠加(Plotting and filling n-pointed star, in which n is an odd number greater than 5)
- 2010-04-06 12:20:01下载
- 积分：1
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line_code_GUI
Line Code GUI for data communication
- 2014-12-23 17:56:56下载
- 积分：1
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ISI
不同信道条件下码间串扰的情况，包括波形图和眼图。(Under different channel crosstalk between code, including waveform and eye diagram.)
- 2010-07-25 11:03:16下载
- 积分：1
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KPCA
核主元分析模型，用于故障检测，输入建模数据和待检测数据，计算T2和SPE统计量(Kernel Principal Component Analysis model for fault detection, input data for modeling and data to be detected, calculated T2 and SPE statistics)
- 2012-08-23 14:36:59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
