cyclic

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 )

薛定宇编写的《控制系统仿真与计算机辅助设计》 书中的全部源码(code of book《control system and computer aid design》by xue ding yu)

THIS CODE IS AN IMPLEMENTATION FOR THE GREEDY ALGORITHM IN COMRESSIVE SENSING THE ORTHOGONAL MATCHIN PURSUIT

对模拟信号抽样，然后进行离散傅里叶变换，利用自编DFT函数，得到频谱，然后进行频谱的还原。(Sampling the analog signal, then the discrete Fourier transform, DFT self function obtained spectrum and the spectrum reduction.)

FVS 算法在MATLAB平台上的实现，包括源代码，说明等(FVS experiment on MATLAB)

dIVISIVE CLUSTER ALGORITHM

电骡0.45b源码.rar (-- Mule 0.45b source. Rar-- Mule 0.45b source. Rar)

Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth: a measure of the width of a range of frequencies, measured in hertz Bandwidth (computing) or digital bandwidth: a rate of data transfer, bit rate or throughput, measured in bits per second (bps) Spectral linewidth: the width of an atomic or molecular spectral line, measured in hertz

非常完美的OFDM程序，已经在MATLAB验证过，完全能用！！！(Perfect OFDM program has been validated in MATLAB, can be used completely! ! !)

了解MATLAB，能够熟练掌握数学（矩阵）运算，简单编程，简单的数据处理、符号运算及基本图形绘制.对MATLAB面向对象编程与simulink有基本了解。(Learn MATLAB, to master the math (matrix) operator, simple programming and simple data processing, symbolic manipulation, and basic graphics rendering. On simulink MATLAB object-oriented programming with a basic understanding.)