http://de.evo-art.org/index.php?action=history&feed=atom&title=Halftoning_and_Stippling 2026-04-05T20:10:57Z Versionsgeschichte dieser Seite in de_evolutionary_art_org MediaWiki 1.27.4 http://de.evo-art.org/index.php?title=Halftoning_and_Stippling&diff=1846&oldid=prev 2014-11-29T18:34:35Z

<p>Die Seite wurde neu angelegt: „ == Reference == Oliver Deussen and Tobias Isenberg. Halftoning and Stippling. In Paul Rosin and John Collomosse, editors, Image and Video based Artistic Styl…“</p> <p><b>Neue Seite</b></p><div><br /> <br /> == Reference ==<br /> Oliver Deussen and Tobias Isenberg. Halftoning and Stippling. In Paul Rosin and John Collomosse, editors, Image and Video based Artistic Stylisation, volume 42 of Computational Imaging and Vision, chapter 3, pages 45–61. Springer, London, Heidelberg, 2013. ISBN 978-1-4471-4518-9 (hardcopy) and 978-1-4471-4519-6 (e-book). <br /> <br /> == DOI ==<br /> http://dx.doi.org/10.1007/978-1-4471-4519-6_3 <br /> <br /> == Abstract ==<br /> One important origin of non-photorealistic computer graphics comes from printing technology. Halftoning is a reproduction technique for photography in printing. The continuous tones of the images are represented by fulltone dots of varying size, shape, and density. While printing technology brought this to perfection over time, computer graphics researchers developed methods that modified this process for artistic purposes. For purposes of halftoning, dots are distributed in repetitive patterns. Stippling, an artistic illustration technique, distributes them in a random but expressive way. Illustrators aim at representing tone and texture of an object by such patterns. Interestingly, the distributions can be described mathematically and a simple optimization scheme allows computers to imitate the artistic process quite well. The method can be extended towards distributing other shapes. In this case the optimization is extended to move and rotate the objects. This allows users not only to create other forms of illustrations but also to generate mosaics.<br /> <br /> == Extended Abstract ==<br /> <br /> == Bibtex == <br /> <br /> == Used References ==<br /> Deussen, O., Hiller, S., van Overveld, K., Strothotte, T.: Floating points: a method for computing stipple drawings. Comput. Graph. Forum 19(4), 40–51 (2000). doi:10.1111/1467-8659.00396<br /> <br /> Du, Q., Faber, V., Gunzburger, M.: Centroidal Voronoi tessellations. SIAM Rev. 41(4), 637–676 (1999). http://dx.doi.org/10.1137/S0036144599352836<br /> <br /> Floyd, R., Steinberg, L.: An adaptive algorithm for spatial grey scale. Proc. Soc. Inf. Disp. 17(2), 75–77 (1976)<br /> <br /> Fritzsche, L.P., Hellwig, H., Hiller, S., Deussen, O.: Interactive design of authentic looking mosaics using Voronoi structures. In: Proc. 2nd International Symposium on Voronoi Diagrams in Science and Engineering 2005, pp. 1–11 (2005)<br /> <br /> Gersho, A.: Asymptotically optimal block quantization. IEEE Trans. Inf. Theory 25(4), 373–380 (1979). http://dx.doi.org/10.1109/TIT.1979.1056067<br /> <br /> Kim, D., Son, M., Lee, Y., Kang, H., Lee, S.: Feature-guided image stippling. Comput. Graph. Forum 27(4), 1209–1216 (2008). http://dx.doi.org/10.1111/j.1467-8659.2008.01259.x<br /> <br /> Kim, S., Maciejewski, R., Isenberg, T., Andrews, W.M., Chen, W., Sousa, M.C., Ebert, D.S.: Stippling by example. In: Proc. NPAR, pp. 41–50. ACM, New York (2009). http://dx.doi.org/10.1145/1572614.1572622<br /> <br /> Kim, S., Woo, I., Maciejewski, R., Ebert, D.S.: Automated hedcut illustration using isophotes. In: Proc. Smart Graphics, pp. 172–183. Springer, Berlin (2010). http://dx.doi.org/10.1007/978-3-642-13544-6_17<br /> <br /> Kopf, J., Cohen-Or, D., Deussen, O., Lischinski, D.: Recursive Wang tiles for real-time blue noise. ACM Trans. Graph. 25(3), 509–518 (2006). http://dx.doi.org/10.1145/1141911.1141916<br /> <br /> Li, H., Mould, D.: Structure-preserving stippling by priority-based error diffusion. In: Proc. Graphics Interface, pp. 127–134. Canadian Human-Computer Communications Society, School of Computer Science, University of Waterloo, Waterloo (2011)<br /> <br /> Lloyd, S.P.: Least squares quantization in PCM. IEEE Trans. Inf. Theory 28(2), 129–137 (1982). http://dx.doi.org/10.1109/TIT.1982.1056489<br /> <br /> Maciejewski, R., Isenberg, T., Andrews, W.M., Ebert, D.S., Sousa, M.C., Chen, W.: Measuring stipple aesthetics in hand-drawn and computer-generated images. IEEE Comput. Graph. Appl. 28(2), 62–74 (2008). http://dx.doi.org/10.1109/MCG.2008.35<br /> <br /> Martín, D., Arroyo, G., Luzón, M.V., Isenberg, T.: Example-based stippling using a scale-dependent grayscale process. In: Proc. NPAR, pp. 51–61. ACM, New York (2010). http://dx.doi.org/10.1145/1809939.1809946<br /> <br /> Martín, D., Arroyo, G., Luzón, M.V., Isenberg, T.: Scale-dependent and example-based stippling. Comput. Graph. 35(1), 160–174 (2011). http://dx.doi.org/10.1016/j.cag.2010.11.006<br /> <br /> Mould, D.: Stipple placement using distance in a weighted graph. In: Proc. CAe, pp. 45–52. Eurographics Association, Goslar (2007). http://dx.doi.org/10.2312/COMPAESTH/COMPAESTH07/045-052<br /> <br /> Newman, D.J.: The hexagon theorem. IEEE Trans. Inf. Theory 28(2), 137–138 (1982). http://dx.doi.org/10.1109/TIT.1982.1056492<br /> <br /> Secord, A.: Weighted Voronoi stippling. In: Proc. NPAR, pp. 37–43. ACM, New York (2002). http://dx.doi.org/10.1145/508530.508537<br /> <br /> Smith, J.: Recent developments in numerical integration. J. Dyn. Syst. Meas. Control 96(1), 61–70 (1974). http://dx.doi.org/10.1115/1.3426777<br /> <br /> Stoer, J., Bulirsch, R.: Introduction to Numerical Analysis. Springer, Berlin (1980)<br /> <br /> <br /> <br /> == Links ==<br /> === Full Text === <br /> http://tobias.isenberg.cc/personal/papers/Deussen_2013_HS.pdf<br /> <br /> [[intern file]]<br /> <br /> === Sonstige Links ===</div>

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