Artificial mosaic generation with gradient vector flow and tile cutting

Authors:
Sebastiano Battiato;Alfredo Milone;Giovanni Puglisi
Affiliations:
Image Processing Laboratory, Dipartimento di Matematica e Informatica, University of Catania, Catania, Italy;Image Processing Laboratory, Dipartimento di Matematica e Informatica, University of Catania, Catania, Italy;Image Processing Laboratory, Dipartimento di Matematica e Informatica, University of Catania, Catania, Italy
Venue:
Journal of Electrical and Computer Engineering
Year:
2013

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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.