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ct
说明： 基于radon变换的SR-CT断层重建程序，matlab编写(Radon transform based on the SR-CT tomography reconstruction procedures, matlab prepared)
- 2007-08-11 16:48:44下载
- 积分：1
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peridogramse
本程序在MATLAB开发环境下，用周期图谱估计的方法对信号的频谱进行了估计，估计结构为两个频率分量。(The procedure developed in the MATLAB environment, with the cycle map estimation method to estimate the signal s spectrum, estimated structure for the two frequency components)
- 2010-07-20 19:07:02下载
- 积分：1
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li9_23
clear all
I=imread( lena.bmp )
figure imshow(I)
I2=imrotate(I,-4, bilinear ) 逆时针旋转4度
figure imshow(I2)
I3=fliplr(I) 垂直镜像
figure imshow(I3)
I4=imresize(I,0.5, bilinear ) 缩小为原图的1/2
figure imshow(I4)
A=double(I) 转换为double类型
计算7个不变矩
[nc,nr]=size(A)
[x,y]=meshgrid(1:nr,1:nc) 得到网格
x=x(:)
y=y(:)
A=A(:)
m.m00=sum(A)
if m.m00==0
m.m00=eps
end
m.m10=sum(x.*A)
m.m01=sum(y.*A)
计算均值
xmean=m.m10/m.m00
ymean=m.m01/m.m00
计算中心矩(li9_23.rar
cm.cm00=m.m00
cm.cm02=(sum((y-ymean).^2.*A))/(m.m00^2)
cm.cm03=(sum((y-ymean).^3.*A))/(m.m00^2.5)
cm.cm11=(sum((x-xmean).*(y-ymean).*A))/(m.m00^2)
cm.cm12=(sum((x-xmean).*(y-ymean).^2.*A))/(m.m00^2.5)
cm.cm20=(sum((x-xmean).^2.*A))/(m.m00^2)
cm.cm21=(sum((x-xmean).^2.*(y-ymean).*A))/(m.m00^2.5)
cm.cm30=(sum((x-xmean).^3.*A))/(m.m00^2.5)
im(1)=cm.cm20+cm.cm02
im(2)=(cm.cm20-cm.cm02)^2+4*cm.cm11^2
im(3)=(cm.cm30-3*cm.cm12)^2+(3*cm.cm21-cm.cm03)^2
im(4)=(cm.cm30+cm.cm12)^2+(cm.cm21+cm.cm03)^2
im(5)=(cm.cm30-3*cm.cm12)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm21-cm.cm03)*(cm.cm21+cm.cm03)...
+(3*(cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)
im(6)=(cm.cm20-cm.cm02)*((cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)...
+4*cm.cm11*(cm.cm30+cm.cm12)*(cm.cm21+cm.cm03)
im(7)=(3*cm.cm21-cm.cm03)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm12-cm.cm30)*(cm.cm21+cm.cm03)...
*()
- 2010-10-17 21:53:14下载
- 积分：1
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MATLAB
学校关于自动化课程MATLAB的课程设计要求(The school curriculum on the automation design requirements of the course MATLAB)
- 2010-03-11 17:33:13下载
- 积分：1
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10
说明： matlab高效编程程序第十章，可以运行。(Chapter matlab programming procedure efficient, you can run.)
- 2011-04-10 15:32:10下载
- 积分：1
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Matlab
基于Matlab三维数据点三角剖分方法研究，关于matlab在重建中的应用研究，有参考价值(Based on Matlab 3 d data point triangulation method, some research on the application of Matlab in the reconstruction, have reference value
)
- 2013-02-25 21:49:37下载
- 积分：1
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Min-WLI
这是一个用于消除用户间干扰的MATLAB代码，利用了最小化干扰泄露的迭代优化算法，将用户接收到的干扰功率逼近于零来实现干扰消除。(This is a MATLAB code for eliminating interference between users, the use of iterative optimization algorithms minimize interference leaked, the user receives interference power approximation to zero to achieve interference cancellation.)
- 2014-11-13 11:17:56下载
- 积分：1
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04
说明： 应用matlab实现对统计分析中的主成分分析方法，高效实现对输入变量的降低维数，同时(Application matlab realize the principal component analysis statistical analysis, efficient implementation of reduced dimensionality of the input variables, while)
- 2014-01-07 15:31:58下载
- 积分：1
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Lec14
lecture of matlab note it used in mathcad
- 2009-04-18 14:12:59下载
- 积分：1
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shape-test-by-matlab
用Matlab实现图像中的形状如矩形、圆形和正方形的检测(Matlab implementation by the shape of the image, such as rectangular, circular and square test)
- 2011-05-05 16:31:10下载
- 积分：1
