lsmatlab

MATLAB的基于离散小波变换的数字水印嵌入与提取。(MATLAB-based discrete wavelet transform digital watermark embedding and extraction.)

说明：  matlab file computes for NM-RF (Regula-Falsi) method and Secant

Matlab关于香农信道容量公式演示实验Matlab关于香农信道容量公式演示实验(Matlab on Shannon channel capacity formula Matlab demonstration experiment on the Shannon channel capacity formula Demonstration)

（实验）快速傅里叶变换及其应用。包含fft实验的所有源程序，实现fft的基本功能。((Experimental) Fast Fourier Transform and Its Applications. Contains all the source code of the fft experiment, to achieve the basic functions of the fft.)

matlab实现16QAM调制解调 matlab实现16QAM调制解调(ALLIANCES is a recently proposed cooperative random access protocol for wireless networks. In this paper we modify the original model to include user location information. We also derive pair-wise error probability (PEP) under Rayleigh flat fading channel and a power-law attenuation environment. Based on the PEP analysis we propose an optimal relay selection scheme, which achieves significant throughput gains as compared to the random relay selection scheme in the original ALLIANCES.)

说明：  an introduction to programming and methods (an introduction to programming and methods)

提出了一种基于小波变换可抗击几何攻击算法。在水印嵌人 部分# 首先对宿主图像进行小波分解 、 嵌人水印, 再通过余弦变换求得该水印图像的一个特征向量, 利用该特征向量和水印 信息通过12 31 函数生成一个二值逻辑系列, 将该序列作为密钥/ 水印提取部分为# 对待测的图像进行小波变换, 再通过余 弦变换求得待测图像的一个特征向量, 利用该特征向量和密钥通过1 2 4 1 函数提取出水印。(Proposed based on wavelet transform algorithm can be against geometric attacks.# Watermark embedded in the first part of the host image wavelet decomposition, embedded watermark, and then through the cosine transform of the watermarked image obtained by a feature vector, using the feature vector and the watermark information through 1231 to generate a binary logic function series, the sequence as the key/watermark extraction part is# treated transform measured image, and then obtained through the cosine transform the image of a feature vector under test, using the feature vector and the key function by 1241 to extract the watermark .)

随机森林Matlab代码并附有使用说明，用于图像分类处理(Matlab code of Random Forest)

说明：  Household变换，利用仿真数据进行ftt，最小二乘法的多项式拟合(House transform, polynomial fitting of FTT and least square method with simulation data)

emd code for calculate emprical mode dicompistion