中文说明：
一种二维EMD算法，作者是Anna Linderhed，该学者博士研究课题为二维EMD和小波变换，她的二维EMD算法与Nenus或其他学者的算法有较大的不同。
English Description：
A two-dimensional EMD algorithm. The author is Anna linderhed. Her doctoral research topic is two-dimensional EMD and wavelet transform. Her two-dimensional EMD algorithm is quite different from that of nenus or other scholars