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rotation
图片任意角度旋转，没有做插值处理，matlab版本。(Image rotation any angle, does not do interpolation, matlab version.)
- 2010-09-05 13:26:20下载
- 积分：1
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SAR3
基于距离多普勒算法的matlab仿真，进行了距离向压缩，方位向压缩，以及距离徙动校正(The Range Doppler Algorithm and MATLAB Simulation)
- 2021-04-28 09:58:44下载
- 积分：1
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productionplanningoptimization
Optimal Production Planning Formulation
- 2015-01-05 05:34:55下载
- 积分：1
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ode23tx
说明： 四阶龙格库塔法，在解常微分方程时进行数值求解时调用使用(The fourth-order Runge-Kutta method is used to solve ordinary differential equations numerically.)
- 2019-06-14 15:02:01下载
- 积分：1
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nsct_toolbox
说明： NSCT工具箱，研究非降采样contourlet变换的工具(NSCT toolbox to study the transformation of nonsubsampling contourlet )
- 2010-05-04 14:38:10下载
- 积分：1
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slim_soft
移动最小二乘法求曲面谷脊线，并立体呈现
参考文献：Sparse Low-degree Implicit Surfaces with Applications to
High Quality Rendering, Feature Extraction, and Smoothing(To obtain the valley ridge moving least square method, and three-dimensional rendering)
- 2014-08-22 22:55:24下载
- 积分：1
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Matlab-code
英文原版书籍《MATLAB Programming With Applications for Engineers》中例子及课后习题代码(Code of the book《MATLAB Programming With Applications for Engineers》)
- 2013-12-17 07:25:05下载
- 积分：1
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ex7
说明： 用Matlab实现相关分析,并建立其系统界面；对给定的试验数据进行相关分析(Correlation analysis using Matlab implementation and the establishment of the system interface on a given test data correlation)
- 2011-03-23 13:53:16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_wf
MATLAB语言在微分方程中的运用。。。。。。。。。。。(MATLAB language in the use of differential equations. . . . . . . . . . .)
- 2010-03-12 13:50:03下载
- 积分：1
