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AlgorithmCollectionsforDigitalSignalProcessingAppl
matlab基本术语学习，对初学者有帮助(matlab is an important tool for FIR filter design)
- 2009-03-24 10:06:11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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mog
mog background subtraction matlab code
- 2014-10-09 04:56:03下载
- 积分：1
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sf_building
基于有关stateflow的教程很少，现上传stateflow的基本教程，内容简练易懂，希望有利用价值(Stateflow tutorials based on very little, is the basic tutorial Stateflow upload content concise and easy to understand, want to have use value)
- 2007-09-25 13:48:10下载
- 积分：1
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Blocks
clc
close all
clear all
I=imread( desert.jpg )
[r c]=size(I)
bs=16 Block Size (8x8)
nob=(r/bs)*(c/bs) Total number of 8x8 Blocks
Dividing the image into 8x8 Blocks
kk=0
for i=1:(r/bs)
for j=1:(c/bs)
Block(:,:,kk+j)=I((bs*(i-1)+1:bs*(i-1)+bs),(bs*(j-1)+1:bs*(j-1)+bs))
end
kk=kk+(r/bs)
end
Accessing individual Blocks
figure imshow(Block(:,9,1)) This shows u the fist 8x8 Block in a figure window
figure imshow(Block(:,:,2))
- 2013-03-17 15:01:05下载
- 积分：1
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dwtsinsigenergycalculation
Energy calculation for compression and denoising
- 2011-02-01 12:15:53下载
- 积分：1
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LTE_precoding
This function returns the precoding matrix for a specific transmission mode
- 2011-02-04 23:11:14下载
- 积分：1
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guoluranshaoPID
锅炉燃烧过程MATLAB仿真程序，很简单很容易(MATLAB simulation program the boiler combustion process is very simple and very easy)
- 2010-05-13 20:05:02下载
- 积分：1
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huffman
matlab function that generates huffman code for image
- 2014-01-27 03:37:02下载
- 积分：1
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fuzzymlsimu
模糊控制仿真模型,采用MATLAB进行模糊控制系统仿真(FUZZY CONTROL SIMULINK)
- 2013-11-26 13:27:35下载
- 积分：1
