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kalmanfilter
kalman filter在MUTILAB下的卡尔曼滤波功能(kalman filter by MUTILAB)
- 2009-05-22 10:13:35下载
- 积分:1
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MATLABcompiler
The compiler for MATLAB6.5 (The compiler for MATLAB6.5)
- 2008-07-22 19:11:26下载
- 积分:1
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matlab-temperature.m
说明: 计算温度场分布的程序,希望对有关人员有所帮助,基于matlab(Calculated temperature distribution of the procedures in the hope the officers concerned be helpful, based on matlab)
- 2011-03-28 10:53:00下载
- 积分:1
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chafenfa
在MATLAB中用差分方程法求给定脉冲响应的传递函数(Transfer function of the differential equation method in MATLAB with the demand for a given pulse response)
- 2012-06-27 09:50:30下载
- 积分:1
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DCT
实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见,经DCT低通滤波后,图像变得很模糊。因为DCT是FFT取其实部,能量减少,因此图像变得很模糊,没有经FFT滤波后的效果好。
经DCT高通滤波后的图像:
经DCT高通滤波后,图像的低频部分被滤除掉,图像变黑,只有边缘的痕迹可见。
(The DCT of image high-pass, low pass filter and compared with the Fourier transform.)
- 2011-10-19 19:30:31下载
- 积分:1
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New-Text-Document
it s a function args ( varargin )
- 2012-05-23 02:50:22下载
- 积分:1
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Color-image-histogram-equalization
图像处理MATLAB程序(教学使用)-图像灰度级修正(彩色图像直方图均衡化)(MATLAB image processing program (Teaching)- image gray level correction (color image histogram equalization))
- 2014-01-02 14:08:42下载
- 积分:1
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基于量子相位编码的量子遗传算法
一种基于量子相位编码的量子遗传算法,求解TSP(Quantum genetic algorithm)
- 2020-07-25 11:28:43下载
- 积分:1
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dct
M=512 原图像长度
N=64
K=8
I=zeros(M,M)
J=zeros(N,N)
BLOCK=zeros(K,K)
显示原图像
I=imread( f:ceshiyuanshitu.bmp )
figure
imshow(I)
xlabel( 原始图像 )
显示水印图像
J=imread( f:ceshilogistic_nuaa64.bmp )
figure
imshow(J)
xlabel( 水印图像 )
嵌入水印
tem=1
for p=1:N
for q=1:N
x=(p-1)*K+1
y=(q-1)*K+1
BLOCK=I(x:x+K-1,y:y+K-1)
BLOCK=dct2(BLOCK)
if J(p,q)==0
a=-1
else
a=1
end
BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01)
BLOCK=idct2(BLOCK)
I(x:x+K-1,y:y+K-1)=BLOCK
end
end
显示嵌入水印后的图像
figure
imshow(I)
xlabel( 嵌入水印后的图像 )
imwrite(I, f:ceshiembedded.bmp )
- 2010-06-13 18:43:39下载
- 积分:1
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Welch
从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力,进行实验仿真,比较不同的窗函数,不同的数据长度对Welch法谱估计质量的影响,并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)
- 2010-06-16 08:27:53下载
- 积分:1