如今的高光谱数据虽然提供了很多信息，确存在大量冗余的现象，为了方便后续操作，体现数据本质特点，现提供一组代码，可以实现数据的去噪与降采样。包含一组txt格式的测试数据。-Today hyperspectral data, while providing a lot of information, a lot of redundant phenomenon does exist, in order to facilitate subsequent operations, reflecting the nature and characteristics of the data, now offers a set of code, can achieve de-noising and down-sampling data. Txt format contains a set of test data.