A New NPR Approach for Image Stylization: Combining Edges, Color Reduction and Facial Exaggerations. - F. A. P. V. Arruda; V. A. Porto; J. B. O. Alencar Júnior; Herman Martins Gomes; José Eustáquio Rangel de Queiroz; Nathan Moroney (CIMCA/IAWTIC/ISE, 2008)