说明：  利用二维属性直方图的Otsu自动阈值分割方法 提出了二维属性直方图的概概念 ,进而提出了一种基于二维属性直方图的图像自动阈值化方法 有利于写论文
(The use of the histogram properties of two-dimensional Otsu automatic threshold segmentation method takes the concept of a two-dimensional histogram attributes, and then proposed a histogram properties of two-dimensional image thresholding method is conducive to writing papers)