小波变换现在是个热门，本文提供Haar小波变换的分解与重构代码，是自己编的，提供了对应所用的图片，可以用，有详细注释！-Wavelet transform is now popular, the paper provides Haar wavelet decomposition and reconstruction code, is its own series, used to provide the corresponding image, you can use, with detailed notes!