camshift1

用matlab实现的基于LSB的数字水印算法。算法可以在BMP灰度图像中嵌入水印，水印信息为二值图像，并将其扩展到与原始图像同样大小，进行重复嵌入，提高鲁棒性。同时算法中给出了PSNR值以评价水印图像的效果，(Using matlab realize the number of LSB-based watermarking algorithm. Algorithm can be embedded BMP gray image watermark, watermark information for the binary image, and its expansion to the original image the same size, the repetition of embedding, improve robustness. At the same time algorithm PSNR values are given to evaluate the effect of watermark images,)

Write twoMatlab functions L=clolesky_row(A) and L=clolesky_col(A) that compute the Cholesky factor L of a Symetric Positive De… nite (SPD) matrix A = LLT , acessing A by row and by column respectively.

产生一个幅移键控（ASK）信号，具有正态分布的随机幅度。(have a rate-shift keying (ASK) signal is normally distributed random rate.)

这是Matlab中全书最重要以及常用的源码，相当于一个简易的字典(This is the most important book of Matlab, as well as commonly used source, which is equivalent to a simple dictionary)

matlab codes for systems level implementation

采用主成分分析算法进行人脸识别的matlab程序，需要ORL数据库。(PCA recgnition)

分形维数研究声发射时间序列上的撞击率的higuchi维数(Fractal dimension study on the Higuchi dimension of the impact rate in acoustic emission time series)

在Matlab中可以使用的波特图的例子源码，直接打开即可。(Source codes of Bode Plot in Matlab.)

说明：   empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)

有关soi的资料，matlab对其各种特性进行仿真(Information about soi matlab simulation of its various characteristics)