isodata

输入信号通过线性时不变系统，幅度响应和频率响应失真分析MATLAB仿真。(the input signal pass the LTI system,simulate the distortion of amplitude response and phase response.)

Total gradient method extremum If using MATLAB is not difficult, but with C + + is not very easy.(Total gradient method extremum If using MATLAB is not difficult, but with C++ is not very easy.)

matlab程序设计函数讲解教程matlab programming tutorial explaining the function(explain the function matlab programming tutorial matlab programming tutorial explaining the function)

polar code simulation result

说明：  这是一个小波包，里面有很多关于小波函数的东西(This is a wavelet package with lots of things about wavelet functions.)

matlab语言算法 。。。。可以对考试很有用 可以用来被(Matlab language algorithm. . . . Can be useful for the examination can be used to be)

是一本英文版的关于matlab在金融领域应用的书籍，对于需要分析统计海量数据的人有一定帮助哦(This text describes a set of MATLAB functions that implement a host of econometric estimation methods. )

code for parsing signal into frames.

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 )

这是我们学的Matlab的课件，非常有用，希望能给大家帮助。。。(This is what we learn of the Matlab software, very useful, I hope we can help. . .)