| 一种改进的Sobel边缘检测和细化算法 |
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| 引用本文： | 王艳玲.一种改进的Sobel边缘检测和细化算法[J].桂林师范高等专科学校学报,2011,25(2):152-154. |
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| 作者姓名： | 王艳玲 |
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| 作者单位： | 桂林师范高等专科学校物理与信息技术系; |
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| 基金项目： | 广西教育厅科研项目200911LX477 |
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| 摘 要： | 提出了一种改进的Sobel边缘检测和细化算法,用8个方向的模板对灰度图像进行边缘检测得到粗边缘图像,将粗边缘图像再进行Sobel边缘检测得到新的边缘图像,将前者减去后者得到差值图,从而得到边缘较细的边缘图,对于边缘模糊的部分,这种过程可以重复多次,这样能够捕捉多个方向的边缘信息,使检测到的边缘和边缘细化定位更精确。该算法容易实现,计算量小,速度快,适合作为图像检测中的快速边缘检测及细化。
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| 关 键 词： | 图像检测 边缘检测 边缘细化 Sobel算法 |
A New Edge Detection and Edge Thinning Method Based on Sobel Operator |
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| Wang Yanling.A New Edge Detection and Edge Thinning Method Based on Sobel Operator[J].Journal of Guilin College of Education,2011,25(2):152-154. |
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| Authors: | Wang Yanling |
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| Institution: | Wang Yanling(Department of Physics and Information Technology,Guilin Normal College,Guilin,Guangxi541001,China) |
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| Abstract: | A new edge detection and edge thinning method based on Sobel operator is proposed in this paper.First,obtain the crude edge image from the gray image based on the eight directions of templates.To obtain a new edge image,do it again with the method of Sobel.The former minus the latter,therefore an image with thinner edge can be obtained.And this procedure can be repeated several times to obtain thinner edges.It also can detect edge information from all directions and the edges are complete and accurate.The d... |
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| Keywords: | image detection edge detect ion Edge thinning Sobel operator |
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