An efficient convolution interpolation kernel for digital image scaling
Chung‐Chi Lin, Ming‐Hwa Sheu, Huann‐Keng Chiang, Chishyan Liaw, Zeng-chuan Wu · IEICE Electronics Express · 2008
This paper presents an efficient extended linear convolution interpolation method for efficient scaling. The kernel of the extended linear convolution interpolation is built up of first-order polynomial and approximates the ideal sinc-function in interval [-2, 2]. The approach reduces the computational complexity of interpolation and the interpolation quality is compatible to that of bi-cubic convolution interpolations.