title: Image Zoom Completion.
abstract: We consider the problem of recovering a high-resolution image from a pair consisting of a complete low-resolution image and a high-resolution but incomplete one. We refer to this task as the image zoom completion problem. After discussing possible contexts in which this setting may arise, we introduce a nonlocal regularization strategy, giving full details concerning the numerical optimization of the corresponding energy and discussing its benefits and shortcomings. We also derive two total variation-based algorithms and evaluate the performance of the proposed methods on a set of natural and textured images. We compare the results and get with those obtained with two recent state-of-the-art single-image super-resolution algorithms.
authors.forename: Moncef
authors.initials: M
authors.lastname: Hidane
authors.forename: Mireille
authors.initials: M
authors.lastname: El Gheche
authors.forename: Jean-Francois
authors.initials: JF
authors.lastname: Aujol
authors.forename: Yannick
authors.initials: Y
authors.lastname: Berthoumieu
authors.forename: Charles-Alban
authors.initials: CA
authors.lastname: Deledalle