程序实现一个自适应阈值的算法，用以在不规则光照下从背景中提取出前景图像。-Procedures to achieve an adaptive threshold algorithm to extract the foreground from the background image in the irregular light.

依据传统的OTSU算法，对它进行改进后的自适应阈值分割算法-OTSU algorithm based on the traditional, to improve it after the adaptive thresholding algorithm