说明：  高斯_拉普拉斯边缘检测算子的扩展研究--- 论文，对模式识别的朋友会有很大帮助，拿来与大家分享，希望能够用的上！
(_ Laplacian Gaussian edge detection operator--- the expansion of research papers on pattern recognition would be of considerable help of friends, used to share with you, hoping to use the!)