这个有中文注释，看得明白，比较了软阈值，硬阈值及当今各种阈值计算方法,基于小波变换的数字水印算法matlab代码。- The Chinese have a comment, understand it, Comparison of soft threshold and hard threshold and today various threshold calculation method, Based on wavelet transform digital watermarking algo

比较了软阈值，硬阈值及当今各种阈值计算方法,毕业设计有用，小波包分析提取振动信号中的特征频率。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Graduation useful Wavelet packet analysis to extract vibration signal characteristic frequency.