中文说明： 采用的是通用的平面波展开法,基于小波变换的数字水印算法matlab代码，是小学期课程设计的题目，matlab编写的元胞自动机，实现了图像的加水印，去噪，加噪声等功能，基于SVPWM的三电平逆变的matlab仿真。
English Description：
Using the common plane-wave expansion method, digital watermark algorithm based on wavelet transform Matlab code, is a semester course design for small topics, written in MATLAB cellular automata, realize Image Watermarking, noise reduction, plus features such as noise, and MATLAB simulation for three-level inverter based on SVPWM.