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Journal of Electrical and Computer Engineering
Volume 2013 (2013), Article ID 908905, 12 pages
http://dx.doi.org/10.1155/2013/908905
Research Article

Artificial Mosaic Generation with Gradient Vector Flow and Tile Cutting

Image Processing Laboratory, Dipartimento di Matematica e Informatica, University of Catania, Viale A. Doria 6, 95125 Catania, Italy

Received 8 November 2012; Accepted 28 February 2013

Academic Editor: Filippo Stanco

Copyright © 2013 Sebastiano Battiato et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mosaics are images obtained by cementing together small colored fragments and are an ancient example of discrete primitive-based images. Artificial mosaics are illustrations composed by a set of small images called “tiles” that tessellate a source image aiming to reproduce the original visual information in a mosaic-like style. In this paper, we propose a mosaic generation technique based on gradient vector flow (GVF) together with a set of tile cutting heuristics evaluated according to aesthetic criteria. The effectiveness of the proposed approach has been confirmed by a series of tests and comparisons with state-of-the-art techniques.