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基于Hermite插值的彩色图像边缘检测技术
Hermite technique for edge detection in color images
【摘要】 针对现有的边缘提取方法存在的不能同时解决抑噪能力强和保证边缘连续性好的问题,提出了一种基于Hermite插值的彩色图像边缘检测技术算法。该算法与多通道彩色图像边缘检测算法相结合,根据图像自身的彩色、梯度信息,依靠多尺度Hermite曲线插值技术对边缘线段进行连接修复,保证了算法抑噪和检出边缘曲线光滑连接的能力。实验证明,与现有的算法相比,该算法能充分利用图像的颜色和梯度信息,有效地消除噪声,提高边缘检测的连续性。
【Abstract】 Traditional edge detection methods can not perform well with noise resisting and edge continuity maintaining simultaneously.An improved color edge detection method was developed based on the Hermite technique and multipass processing.Edge discontinuities are reduced by a multi-scale Hermite technique based on color gradients in the image.Thus the algorithm provides better noise resisting and edge continuity maintaining simultaneously.Simulations show that compared with existing methods,the edges detected by this algorithm are smoother with less noise.
- 【文献出处】 清华大学学报(自然科学版) ,Journal of Tsinghua University(Science and Technology) , 编辑部邮箱 ,2008年04期
- 【分类号】TP391.41
- 【被引频次】17
- 【下载频次】330