Answers are grounded in this paper and cite their sources.
A new interpolation-based scheme for image expansion is introduced. In the proposed method, the fidelity and sharpness of edges in the expanded image is emphasized. This is achieved by applying edge-directed interpolation and edge sharpening operations. Compared with other methods, our method provides natural and sharp expanded images with light computational cost.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2002) studied this question.