数字图像自适应插值法  

Self-adaptive Interpolation Algorithm for Digital Image

作　　者：金海丁[1] 周孝宽[1] 

机构地区：[1]北京航空航天大学宇航学院图像中心,北京100083

出　　处：《激光与红外》2006年第9期907-910,共4页Laser & Infrared

摘　　要：文章分析了数字图像插值中最常用的双线形插值和立方卷积插值,并提出了一个根据映射点邻域原图像的复杂程度,自适应地调节插值权值的数字图像插值方法。Bilinear and cubic convolution, the most popular interpolation algorithm for digital image, are analyzed first in the paper. Based on these two algorithms, a novel self-adaptive interpolation algorithm is proposed. In this new method, when the grayscale of each interpolated point is computed, the weights of direct and indirect neighbor pixels are self-adaptively determined by the complexity of the neighborhood of the image. The experiment results show that the algorithm is superior to the traditional interpolation algorithm.

关 键 词：图像缩放 双线形插值 立法卷积插值 自适应 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]