中文说明：对图像进行降维，用少量图像的主成分去描述整个图像以提高系统的效率。
English Description：
In order to improve the efficiency of the system, the dimension of the image is reduced and the whole image is described by a small number of principal components of the image.
Matlab code for image dimension reduction
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中文说明：对图像进行降维，用少量图像的主成分去描述整个图像以提高系统的效率。
English Description：
In order to improve the efficiency of the system, the dimension of the image is reduced and the whole image is described by a small number of principal components of the image.