距离变换 保证代码可以运行 运行环境 opencv2.4.9+vs2010-Distance transformation for opencv2.4.9+vs2010

距离变换，用于计算图像中每一个非零点距离离自己最近的零点的距离(Distance transformation is used to compute the distance of each non-zero distance in an image from its nearest zero point)