ID3-face

A local extremum of audio watermarking algorithm, matlab software watermark embedding and extraction operation, also gives some common attack method of audio watermarking attacks.

Lempel Ziv Decoder in Matlab

A SIMPLE MATLAB PROGRAM FOR IMAGE GRAY SCALING

this file is source code for classify the digits by a perceptron neural network in Matlab platform.

matlab code for image watermarking

A Guide to MATLAB for Beginners and Experienced Users

基于FFT的自相关函数快速计算方法估计出自相关函数(Fast calculation method based on the FFT of the autocorrelation function is estimated from the correlation function)

解决霍夫曼树的编码问题，二进制和十进制数可以相互转换(Huffman coding problem solving tree, binary and decimal numbers can be converted to each other.)

matlab中极坐标函数的改进，坐标轴刻度可以为负数，输入参数见注释，有问题email联系，可在matlab命令行中直接运行，如： my_polar2([0,20,30]*pi/180,[-10,0,10], -r ,-20,30)(Matlab polar coordinates function improved, axes calibration can be negative, the input parameters, see Notes email problems can be contacted in Matlab command line direct operations, such as : my_polar2 ([0,20,30]* pi/180 [-10,0,10],- r,-20,30))

这是一个PCA的练习题，即主成分分析，用于数据将维，将高维大数据降为低维数据。是一种高效率的数据处理方法。(This is a PCA exercises, namely principal component analysis for data-dimensional, high-dimensional data is reduced to a large low-dimensional data. Is a highly efficient method of data processing.)