Image super resolution with adaptive edge enhancement algorithm
Jaturon Ngernplubpla, Orachat Chitsobhuk · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014
In this paper, an adaptive edge enhancement algorithm is proposed to reconstruct a super resolution image from a single low resolution one. In order to improve the results of the high resolution reconstruction, edge statistics is learned from the scenes using a statistical analysis of the maximum likelihood estimation to approximate edge boosting weight that helps to significantly enhance edge information in the high frequency area. The edge sketch image will be adaptively combined with the results of wiener filter according to the values of the local variance. The experimental results on several test images show the success in reconstructing the super resolution both quantitatively and perceptually.