中文说明：
基于不精确拉格郞日算子法的低秩矩阵重构程序，可以用于图像分割，将目标图像分割为背景和前景，从而将前景分离出来。
English Description：
The low rank matrix reconstruction program based on imprecise Lagrange operator method can be used for image segmentation to segment the target image into background and foreground, so as to separate the foreground.