stretch_add_window_change

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)... *()

前项平滑技术，是空间普技术中解相干的一种重要方法(former smoothing technology, space technology Pronk decorrelation an important method)

matlab的100个实用源代码例子，包括图像处理，数值计算等常用源代码(matlab source code for the 100 practical examples, including image processing, numerical calculation of the source code used)

采用动态规划方法实现的目标分配，后面有MATLAB代码(Solving Weapon Target Assignment Problem with Dynamic Programming)

说明：  自适应网格划分通用程序包，美国伯克利大学开发的共享软件包。(Adaptive Mesh generic package, the United States developed at the University of Berkeley's share package.)

optimization of function by PSO

matlab编程的指导教程，其中配有大量M文件的例程，对matlab的初学者很有用(matlab programming tutorial, which Peiyoutailiang M-file routines, useful for beginners matlab)

说明：  matlab 基于二维伽马函数的光照不均匀图像自适应校正算法(Adaptive correction algorithm of illumination nonuniformity image based on two-dimensional gamma function)

一种music方法 对两个测量角度进行仿真分析，包括 目标个数估计和music测角(A music methods of simulation analysis, including two measuring angles of the target number of estimates and music goniometer)

说明：  关于BP神经网络的一个MATLAB程序,仿照《智能控制》教材书上的(About a MATLAB BP neural network program, modeled on the intelligent control teaching book)