06107052

j

06107052 Amat, S. Ruiz, J. Trillo, J.C. Adaptive interpolation of images using a new nonlinear cell-average scheme. Math. Comput. Simul. 82, No. 9, 1586-1596 (2012). 2012 Elsevier Science B.V. (North-Holland), Amsterdam EN zoom subcell resolution image interpolation cell-average multiresolution nonlinear subdivision scheme

doi:10.1016/j.matcom.2012.03.006

Summary: We present a new method for image interpolation which combines a cell average version of the nonlinear interpolatory technique called PPH (Piecewise Polynomial Harmonic) and subcell resolution techniques. It is designed to perform more accurately at discontinuities, avoiding the evaluation of any extrapolation technique. Numerical experiments are shown validating the theoretical aspects of the algorithm.