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Geometry-Based Demosaicking

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3 Author(s)
Sira Ferradans ; Dept. de Tecnologies de la Informacio i les Comunicacions, Univ. Pompeu Fabra, Barcelona ; Marcelo Bertalmio ; Vicent Caselles

Demosaicking is a particular case of interpolation problems where, from a scalar image in which each pixel has either the red, the green or the blue component, we want to interpolate the full-color image. State-of-the-art demosaicking algorithms perform interpolation along edges, but these edges are estimated locally. We propose a level-set-based geometric method to estimate image edges, inspired by the image in-painting literature. This method has a time complexity of O(S) , where S is the number of pixels in the image, and compares favorably with the state-of-the-art algorithms both visually and in most relevant image quality measures.

Published in:

IEEE Transactions on Image Processing  (Volume:18 ,  Issue: 3 )