mra_mallat_2D_iterate.m实现二维图像的分解，mra_mallat_2D_merge_iterate.m实现二维图像的重构。程序针对2^N*2^M像素的图像设计，可以实现任意次数的分解与重构。也很很方便改写成针对任意像素的程序。-mra_mallat_2D_iterate.m decomposition of the two-dimensional image, mra_mallat_2D_merge_iterate.m two-dimensional image reconstruction. 2 ^ N* 2 ^ M pixel image design, the program can be any number of decomposition and reconstruction. Also, it is very convenient to be rewritten as a procedure for an arbitrary pixel.