Reversible-Data-Hiding-in-Encrypted-Images-by-Res

说明：  绘制星座图的程序，主要要是QAM的仿真，希望大家看看。基于小波的星座图仿真(Constellation diagram drawing program, the main if the QAM simulation, let us look. Wavelet-based Constellation Simulation)

一个运动补偿算法imgPSNR.m 图像的PSNR 代码。(A motion compensation algorithm imgPSNR.m image PSNR code.)

face detect on web camera

Face Detection, neural network

Some control exercises with matlab

3DFDTD用来计算三维光子晶体在入射波照射下的透过率情况(3DFDTD used to calculate the three-dimensional photonic crystal in the case of incident radiation transmittance)

函数Jf用来求所付代价的增加值，只要在matlab中输入Jf=Jf(a)得到的结果就是J了，其中a的值为对应的 值； 函数Rf用来求所收益增加值，只要在matlab中输入Rf=Rf(a)得到的结果就是R了，其中a的值为对应的 值； 如果要修改表格的值的话，就对应的修改函数Jf和Rf中的数组y的值就好了，M的值和N的值以及r的值都可以修改的。 (Used to demand the consideration paid for the increase in value of the function Jf, in matlab enter Jf = Jf (a) the results obtained is J, the value corresponding to the value of a function Rf used to ask or gains added value, as long as Rf = Rf (a) input in matlab result is R, where a value of corresponding value If you want to modify the value of the form, it corresponds to modify the function Jf and Rf array y values ​ ​ like , the values ​ ​ of M and N values, and the value of r can be modified.)

说明：  声波方程正演模拟大模型样例。 包含三个地质层，分别对应速度可以自行修正。 震源函数是雷克子波。 C源程序，输出结果Matlab绘制。(Acoustic wave equation forward modeling big model of the sample. Consists of three geological layers, corresponding to the speed you can correct itself. Lake wavelet source function is. C source code, the output of Matlab draw.)

matlab code for fast fourier transform.

用修正协方差法对信号进行频率估计，并通过仿真图形得出该方法的优缺点。(The modified covariance method estimates the signal frequency, and graphics obtained through the simulation of the advantages and disadvantages of the method.)