Exemplar-Based Color Image Inpainting Using a Simple and Effective Gradient Function.
Sai Hareesh Anamandra, Venkatachalam Chandrasekaran · IPCV · 2010
Current challenge in the inpainting domain is in regard to large object removal and region-filling thereafter. Problems get even more complex when the inpainting domain is in colour. In the literature, several attempts have been made to achieve perceptually satisfying results which are technically and semantically valid. All these techniques can be grouped under statistical, PDE-based and exemplar-based methods. Among these techniques, the exemplar-based approaches are gaining popularity on account of their computational efficiency and visually pleasing results. Original contribution in this direction is due to a seminal paper by Criminisi et al. This has led to a number of novel contributions in terms of patch filling prioritization and associated metrics to measure colour and structure. In this paper, we propose a fast and simple technique based on a gradient function to evaluate the filling order prioritization. Despite its simplicity, experimental results demonstrate superior performance over all the recent advances quoted in the literature.