| 一种改进的基于Canny算子的图像边缘提取算法 |
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| 引用本文： | 张震,马驷良,张忠波,刘辉,宫跃欣,孙秋成.一种改进的基于Canny算子的图像边缘提取算法[J].吉林大学学报(理学版),2007,45(2):244-248. |
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| 作者姓名： | 张震 马驷良 张忠波 刘辉 宫跃欣 孙秋成 |
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| 作者单位： | 1. 吉林大学 数学研究所， 长春 130012； 2. 大庆油田 物业集团， 黑龙江省 大庆 163453 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 对Canny边缘提取算法进行改进, 采用二维高斯函数的一阶偏导数构造滤波器计算梯度幅值, 利用一种四阈值边缘检测定位方法定位边缘, 最后引入数学形态学方法对边缘细化处理. 改进算法对噪声抑制效果明显, 能够删除伪边缘, 检出边缘更加精细, 实验结果表明了改进算法的可行性和有效性.
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| 关 键 词： | Canny算子 边缘提取 图像处理 |
| 文章编号： | 1671-5489(2007)02-0244-05 |
| 收稿时间： | 2006-06-30 |
| 修稿时间： | 2006年6月30日 |
Improved Image Edge Extraction Algorithm Based on Canny Operator |
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| ZHANG Zhen,MA Si-liang,ZHANG Zhong-bo,LIU Hui,GONG Yue-xin,SUN Qiu-cheng.Improved Image Edge Extraction Algorithm Based on Canny Operator[J].Journal of Jilin University: Sci Ed,2007,45(2):244-248. |
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| Authors: | ZHANG Zhen MA Si-liang ZHANG Zhong-bo LIU Hui GONG Yue-xin SUN Qiu-cheng |
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| Institution: | 1. Institute of Mathematics, Jilin University, Changchun 130012, China;2. Estate Group, Daqing Oilfield, Daqing 163453, Heilongjiang Province, China |
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| Abstract: | This paper introduces a new approach of improved-Canny operator for edge detection.The filter operator constructed with the first order partial derivative of two-dimensional Gaussian function is employed to compute gradient.Then the edge was located via the edge detection and localization method with four threshold values.And finally,edge thin operation was conducted by introducing a morphological operator.The improved algorithm can enhance the capability of suppressing noise,delete false edges and obtain exact edges.Experimental results indicate the feasibility and validity of the improved algorithm. |
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| Keywords: | Canny operator edge extraction image processing |
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