二维离散小波变换 包括源代码和实验结果分析。在数值分析和时频分析中很有用。第一个离散小波变换由匈牙利数学家发明，离散小波变换顾名思义就是离散的输入以及离散的输出，但是这里并没有一个简单而明确的公式来表示输入及输出的关系，只能以阶层式架构来表示。

-Two-dimensional discrete wavelet transform including source code and experimental results. In numerical analysis and time-frequency analysis is useful. The first discrete wavelet transform invented by the Hungarian mathematician, discrete wavelet transform as well as the name suggests is a discrete input discrete output, but there is no one simple and clear formula to represent the relationship between the input and the output, only a hierarchical architecture representation.