- 期刊
- OpenAccess
Improved Non‐linear Image Enhancement for Video Coding
並列摘要
It is well known that the B‐spline filter can yield a very accurate algorithm for smoothing. In this paper, it is shown that a cubic B‐spline filter can be used to improve the nonlinear image enhancement method. In the non‐linear image enhancement, a higher‐frequency component can be predicted to solve the blurred problem of an enlarged image. This paper also presents a new three‐dimensional (3‐D) down‐scaling scheme to subsample video data for video coding. Furthermore, a novel non‐linear image‐enhancement compensation algorithm with cubic B‐spline filter is presented to improve the prediction of higher‐frequency component and accordingly the efficiency of the 3‐D downscaling video coding. Finally, a computer simulation shows that the proposed method yields a better quality of the decoded image than other non‐linear enhancement methods.
延伸閱讀
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