基于Canny算法的改进型图像边缘检测算法  

Improved Image Edge Detection Algorithm Based on Canny Operator

作　　者：潘琦[1] 黄英[1] 

机构地区：[1]广东工业大学自动化学院,广东广州510006

出　　处：《工业控制计算机》2011年第10期57-58,共2页Industrial Control Computer

摘　　要：Canny算子是基于最优化算法的边缘检测算子,它具有很好的信噪比和检测精度,但是它使用的高斯滤波方法会造成图像的平滑和边缘的模糊,并且对脉冲噪声很敏感。探讨对Canny边缘提取算子的改进方法,提出了将改进的开关中值滤波算法应用于Canny算法的思想,使之提取出的边缘更加完整,并且有很好的噪声抑制效果。Canny edge detection algorithm is a kind of edge detection algorithm which have good comprehensive evaluation,but the Gaussian filter algorithm it used may cause image too smooth and fuzzy of the edge,and it is very sensitive for saltpepper noise.This paper discusses the improving methods of Canny.An improved switch median filter algorithm is proposed and used on Canny.Which makes the edge more complete,and it can remove noise better.

关 键 词：CANNY算子 边缘提取 开关中值滤波 边缘保持 图像处理 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]