3phIMVC

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 )

用matlab编程求解图论中独立集问题(ISP),程序简单明了,希望大家能提出更进一步的改进意见.(Matlab programming using graph theory for solving Independent Set Problem (ISP), the procedure is simple and hope that we can introduce a further improvement.)

射频方面的资料，里面有详细的M文件，希望对大家有用。(Radio frequency information, there are detailed paper M, in the hope that useful to everyone.)

matlab下的单纯形法 针对函数多个点简单可行的最优化计算(matlab simplex method under the multiple points for the function of the optimization calculation is simple and feasible)

三相电逆变器及并网发电方法的控制模型仿真(Three-phase power inverter and the grid method of the control model simulation)

Field of Digital Communications. Topic: Diversity Combining Matlab Program (m File) for exploiting Receiver Antenna Diversity: Performance Analysis of Selection Diversity with 3 Receiver Antennas

this provides the Discrete Fourier Transform function that can be used im more applications

给出了信号压缩通常的变换-量化-编码函数。DHT函数为离散DHT变换，是FFT变换的近似，其正反变换相同，克服了FFT复系数不利于存储的缺点。LLMAX函数给出了某x序列在固定比特下的最佳量化输出。熵编码函数为霍夫曼编码。(Gives the signal compression usually transform- quantitative- coding function. DHT DHT discrete transform function, the FFT transform approximation, the same positive and negative transformation, overcoming complex FFT coefficient is not conducive to storage shortcomings. LLMAX function x is given a fixed bit sequence in the optimum quantized output. Entropy coding function as Huffman coding.)

这是matlab6.5 的使用方法，通过学习该书，可以精通matlab(This is matlab6.5 to use, by learning the book can be proficient in matlab)

different classifier for matlab