包含特征值与特征向量的提取、训练样本以及最后的识别，基于小波变换的数字水印算法matlab代码，包含优化类的几个简单示例程序。- Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Based on wavelet transform digital watermarking algorithm matlab code, Optimization class contains several simple sample programs.