基于边界程度的图像插值算法

Image interpolation algorithm based on edge degree

为了有效地消除传统图像插值中出现的边缘锯齿现象,提出了基于边界程度的图像插值算法。该算法充分考虑自然图像边缘缓慢变化的特点,在图像边缘平滑的假设下,采用边界程度信息来抑制锯齿现象。实验结果表明,该算法能够很好地解决图像插值中的边缘锯齿现象问题,且不会产生其他明显的人工痕迹。此外,该算法还保持了传统插值算法简单有效的特点,实现和应用起来都比较方便。

In order to eliminate the phenomenon of contour jaggies in conventional image interpolation schemes,an edge-degree-based image interpolation method was proposed.Under the smooth contours assumption,the method considered the smoothly varying characteristics of nature image contours,and utilized the information of edge degree to suppress contour jaggies.Simulation results show that the proposed method produces fewer jaggies,and it doesn＇t introduce other obvious artifacts.Furthermore,the method still preserves the simplicity and efficiency of conventional image interpolation methods,and is easy for implementation and application.