这两个函数是用来转换成记录的数组（即数组中的每个位置是一个子矩阵）小波包树的过程中这两个函数将有助于pogrammers子图像容易-These two functions are used to convert the wavelet packet tree into array of record (i.e. each location in the array is a sub-matrix)... These two function will help the pogrammers for process the sub-images easily