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Ｋ－Ｌ变换是遥感数字图像处理中常用的方法之一。文中用Ｋ－Ｌ变换图像分析的方法对冀北区域化探数据进行再分析，提取出张家口—赤城金矿化集中区金矿成矿期次的信息，并用数字图像复合分析的方法探讨了各成矿期在空间上的发育情况。
K-L transform is one of the commonly used methods in remote sensing digital image processing. In this paper, the K-L transform image analysis method is used to reanalyze the geochemical data in the north of Hebei Province to extract information of the gold mineralization stages in the Zhangjiakou-Chicheng gold mineralization area. The digital image composite analysis The development of the mineralization in space.