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04141151
能够运用最小二乘发计算频谱，可以精确估算频谱(good way)
- 2010-09-14 22:48:46下载
- 积分：1
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fangzhen
说明： 三项交流同步电机的仿真
已经调试过了 可以使用(3 AC synchronous motor simulation has been debugging can use)
- 2008-11-24 21:04:14下载
- 积分：1
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pv-modele5
PHOTOVOLTAIC MODELISATION WITH SIMULINK
- 2013-11-06 21:00:45下载
- 积分：1
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v
说明： Matlab program to find square root,definite integrals
- 2015-03-09 18:29:43下载
- 积分：1
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Reinformance-Learning---Setareh-Mostajabi
"The Implementation of Reinforcement Learning" by "Setareh Mostajabi - Master of AI"
- 2012-11-22 06:20:57下载
- 积分：1
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chaotic-keril-her-optimization
chaotic keril her optimization
- 2015-04-11 16:32:35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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xiaobo
说明： 本文章详细介绍了 如何用matlab 进行小波分析从而建立音频的数据索引(This article details how to use matlab wavelet analysis carried out so as to establish audio data indexing)
- 2008-09-02 13:58:14下载
- 积分：1
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principleofcommunicationMATLAB
说明： 对于学习通信原理并且要求运用matlab仿真的学者来说是一本很好的书籍。(Communication Theory for the study and asked the scholars to use matlab simulation is a very good book.)
- 2010-03-30 22:46:53下载
- 积分：1
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uiselectim
Visually select image using a GUI
- 2010-07-16 18:37:35下载
- 积分：1
