计算机工程Issue(2)：224-227,233,5.DOI:10.3969/j.issn.1000-3428.2015.02.043
图像插值的自适应邻域滤波方法
Adaptive Neighborhood Filtering Method of Image Interpolation
摘要
Abstract
The interpolated pixel can be expanded along the direction on which image grey is continuously varied by Tyler expansion. But the linear average of these Tyler expansions along the continuous and discontinuous direction will enlarge the width of image edges and introduce blurring and zigzag effects. In this paper, a neighborhood filtering for image interpolation is proposed. A weighted function based on grey distance adaptively selects the Tyler expansions in the neighborhood of interpolated pixel. The principle of the method is that the weight of the pixel which lies on the same lateral of image edges with the interpolated pixel is large,so its Tyler expansion is selected,vice versa,the weight is small and its Tyler expansion is not selected. It avoids the average of the expansions which cross the image edges, and can reduce width of edge and increase slope,which produce scrip edges.关键词
图像插值/线性插值/Tyler展开式/邻域滤波/自适应方法/双边滤波Key words
image interpolation/linear interpolation/Tyler expansion/neighborhood filtering/adaptive method/bilateral filtering分类
信息技术与安全科学引用本文复制引用
詹毅,李声杰,李梦..图像插值的自适应邻域滤波方法[J].计算机工程,2015,(2):224-227,233,5.基金项目
国家自然科学基金资助项目(61202349) （61202349）
重庆市基础与前沿研究计划基金资助一般项目(cstc2013jcyjA40058) （cstc2013jcyjA40058）
重庆市教委科学技术研究基金资助项目(KJ131209,KJ120709) （KJ131209,KJ120709）
重庆文理学院校级基金资助项目(R2012SC20)。 （R2012SC20）
