Abstract | ||
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This paper presents a novel method to convert a photograph into a stipple illustration. Our method addresses directional stippling, where the collective flows of dots are directed parallel and/or orthogonal to the local feature orientations. To facilitate regular and directional spacing of dots, we introduce the notion of a structure grid, which is extracted from the smoothed feature orientation field. We represent a structure grid as a 2D texture and develop an efficient construction algorithm that outperforms conventional Lloyd’s method in terms of the rigor of dot alignment. Moreover, the criss-crossing nature of a structure grid allows for the inclusion of line primitives, providing effective description of dark tone. Given a structure grid, we determine the appropriate positions and attributes of primitives in the final illustration via rapid pixel-based primitive rendering. Experimental results show that our directional stippling method nicely reproduces features and tones of various input images. |
Year | DOI | Venue |
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2011 | 10.1016/j.gmod.2010.12.001 | Graphical Models |
Keywords | Field | DocType |
Stippling,Hatching,Hedcut illustration,Texture synthesis | Computer vision,Feature orientation,Computer graphics (images),Computer science,Stippling,Pixel,Artificial intelligence,Rendering (computer graphics),Texture synthesis,Grid | Journal |
Volume | Issue | ISSN |
73 | 3 | 1524-0703 |
Citations | PageRank | References |
12 | 0.53 | 24 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Minjung Son | 1 | 46 | 3.30 |
Yunjin Lee | 2 | 399 | 21.22 |
Henry Kang | 3 | 454 | 17.87 |
Seungyong Lee | 4 | 2130 | 157.29 |