说明：  本文提供了基于局部颜色信息不变的阴影检测方法，根据，被覆盖为阴影的区域与原背景区域的RGB分量之间的关系，推导出阴影区域的特点。
(This article provides a constant shadow detection method based on local color information to be overwritten as the shadow area and the original background of the region between the RGB components, deduce the characteristics of the shaded area.)