Ferradans Ramonde, SiraBertalmío, MarceloCaselles, VicenteUniversitat Pompeu Fabra2011-11-232011-11-232009Ferradans S, Bertalmío M, Caselles V. Geometry-based demosaicking. IEEE Transactions on Image Processing. 2009; 18(3): 665-670. DOI 10.1109/TIP.2008.20102041057-7149http://hdl.handle.net/10230/13136Demosaicking 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.application/pdfeng© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4770153Imatges -- Processament -- Tècniques digitalsInterpolació (Matemàtica)Fotografia digitalinfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1109/TIP.2008.2010204DemosaickingIn-paintingInterpolationLevel-setsEdge detectioninfo:eu-repo/semantics/openAccess