-
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
-
QR
说明： QR分解是球形MIMO检测算法必不可少的环节,本代码采用m语言描述了QR分解分解具体怎么实现,而不是直接调用matlab内部函数,采用的是QR分解的脉动阵列结构,据此代码可轻易实现QR分解的FPGA设计(QR decomposition is an essential part of the spherical MIMO detection algorithm, the code uses QR decomposition decomposition m language to describe specifically how to achieve, rather than a direct call matlab internal function, using the QR decomposition systolic array structure, pursuant to which the code can be easily QR decomposition FPGA design)
- 2013-01-13 21:15:12下载
- 积分：1
-
L-shaped-beam-DOA-estimation
基于增广矩阵束的L型阵列的二维DOA估计MATLAB程序(Based on the augmented matrix L-shaped beam two-dimensional array DOA estimation MATLAB program)
- 2013-09-11 09:38:25下载
- 积分：1
-
MatlabRWP
Random WayPoint mobility model in Matlab
- 2011-11-02 07:03:16下载
- 积分：1
-
example1
遗 传 算 法 的 简 明 案 例 非常适合初学者应用(The Genetic Algorithm condensed case)
- 2012-09-22 21:24:17下载
- 积分：1
-
2006104140195588
MATLAB 图像处理命令附录
并有简短程序和代码(MATLAB image processing orders and a brief appendix procedures and code)
- 2006-12-18 23:05:34下载
- 积分：1
-
myself_ook
Bit error of OOK modulation for UWB
- 2013-05-05 03:14:09下载
- 积分：1
-
gaijinxingh_k_fenbuhaizabo
说明： 改进型K分布还杂波程序，非常棒的MATLAB源码呵呵，谁用谁知道！(K distribution clutter also improved procedures for the MATLAB source Oh great, who is with who knows!)
- 2010-04-27 11:16:40下载
- 积分：1
-
SM-Johnson
It is a SM johnson filter that is using filter designing concept
- 2013-11-24 19:55:24下载
- 积分：1
-
200552823195
一步步讲解如何在VC中调用matlab图像处理工具箱来进行canny边缘提取
1.包含pdf文档和源代码
2.源代码code
开发环境是VC6、Matlab7
(a step by step on how to call in VC Matlab Image Processing Toolbox to a canny edge extraction. Pdf files and contains the source code two. Source code development environment is VC6, Matlab7)
- 2005-08-11 09:14:08下载
- 积分：1
