这是小波变换的一些常见方法。里面的2D DTCWT小波变换是一种很好的工具，可以加以组合，应用到其他图像分析任务当中，谢谢！-Inside the 2D DTCWT wavelet transform is a good tool that can be combined and applied to other image analysis tasks, thank you!This can be also get at website：http://eeweb.poly.edu/iseles

原子波变换工具箱，从国外网站下载的源码，希望对学习稀疏表示的同学有所帮助-Atomic wavelet transform Toolbox, website source from abroad, I hope to learn a sparse representation to help students