Two edge detection operators of second derivative model , the discrete Laplacian of Gaussian ( DLOG ) and Laplacian of binomial distribution ( LOB ) operators are introduced in this paper .
本文首先导入了离散的高斯-拉普拉斯（DLOG）及二项分布&拉普拉斯（LOB）两种二阶导数型边缘检测算子。
dlog