对称边缘最大相关性图像插值算法与实现  

Symmetric Edge Max-relativityImage Interpolation Algorithm and Implementation

作　　者：汪陈伍[1] 张崇军 

机构地区：[1]西安邮电学院通信技术研究所,西安710061 [2]中国兵器工业第203研究所,西安710065

出　　处：《弹箭与制导学报》2010年第4期217-219,226,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为了解决数字图像插值过程中出现的边缘锯齿和图像模糊现象．提出一种改进的对称边缘最大相关性图像插值算法。通过边缘检测算法得到图像边缘．边缘像素具有最大相关性的方向确定为边缘方向。对于非边缘方向采用传统插值方法，对于边缘方向沿边缘方向插值。实验结果表明．该算法提高了运算效率，并有效消除图像插值过程产生的边缘锯齿和模糊现象。To reduce the edge sawtooth and blur of image during the digital image interpolation, an improved image interpolation method based on symmetric edge relativity was proposed. Image edge was got with.edge-detection algorithm; the max-relativity direction of edge pixel was set to the edge-direction. For image pixel with no edge-direction, the interpolation was done with traditional interpolation method. For image pixel with edge-direction, interpolation was implemented along the edge direction. Simulation results show that the proposed method can improve the operation efficiency and remove the sawtooth and blur at the edge.

关 键 词：图像插值 边缘检测 对称边缘相关性 边缘方向 

分 类 号：TN919.8[电子电信—通信与信息系统]