说明：  在高光谱图像处理和分析中,主成分分析方法是使用最广泛的线性降维 方法之一,它概念简单,实现算法高效"在信号处理中,所谓的Karl血nen.b姆ve 变换实际上就是主成分分析
(In hyperspectral image processing and analysis, principal component analysis is the most widely used linear dimensionality reduction methods, it is conceptually simple and efficient algorithm " in signal processing, the so-called Karl blood nen.b Farm ve actually transform is the principal component analysis)