南京大学学报（自然科学版）Issue(2)：279-284,6.DOI:10.13232/j.cnki.jnju.2015.02.010
基于四元数的彩色 Canny 边缘检测算法
Quaternion based color Canny edge detection algorithm
摘要
Abstract
Conventional edge detection algorithms suffer from the problems of color edge deletion,low positioning ac-curacy,a false pseudo-edge and poor anti-noise performance.This paper proposes an improved method based on quaternion Canny operators to solve such problems.The method utilizes colored edge features quaternion matrix to calculate image edge gradient amplitude and thus can extract the edges accurately.We use PSNR and Pratt quantitative to evaluate the quality of the proposed algorithm,and the experimental results demonstrate that it is in-sensitive to noise and can reduce the color edge information missing rate and false detection rate efficiently.关键词
四元数/彩色Canny/边缘检测/Pratt品质因数Key words
quaternion/color Canny/edge detection/Pratt quality factor分类
信息技术与安全科学引用本文复制引用
龚俊,陈惠娟,郭蓉,李勃,陈启美..基于四元数的彩色 Canny 边缘检测算法[J].南京大学学报（自然科学版）,2015,(2):279-284,6.基金项目
国家自然科学基金(61401239),国家水体污染控制与治理科技重大专项(2012ZX07506-004-003) （61401239）
