Geometry-based demosaicking

Ferradans Ramonde, Sira; Bertalmío, Marcelo; Caselles, Vicente

doi:http://dx.doi.org/10.1109/TIP.2008.2010204

Geometry-based demosaicking

Citation

Ferradans S, Bertalmío M, Caselles V. Geometry-based demosaicking. IEEE Transactions on Image Processing. 2009; 18(3): 665-670. DOI 10.1109/TIP.2008.2010204

Abstract

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.