Graphics, Imaging, and Games Lab

  • Home
  • About Us
  • Contact
  • Login
Home

From the Lab

  • Benchmark
  • Projects
  • Publications
  • Image Galleries
  • Blogs
  • Lab Members
  • Prospective Students
  • Search

Structure-Preserving Stippling by Priority-based Error Diffusion

Hua Li
David Mould
Structure-Preserving Stippling by Priority-based Error Diffusion. GI, 2011.
Conference Paper

Award(s):
The Michael A. J. Sweeney Award for Best Student Graphics Paper

Related Projects
Image Stylization

Download the PDF

http://portal.acm.org/citation.cfm?id=1992938&CFID=25874310&CFTOKEN=65321882

Abstract

This paper presents a new fast, automatic method for structure-aware stippling. The core idea is to concentrate on structure preservation by using a priority-based scheme that treats extreme stipples first and preferentially assign positive error to lighter stipples and negative error to darker stipples, emphasizing contrast. We also use a nonlinear spatial function to shrink or exaggerate errors and thus implicitly provide global adjustment of density. Our adjustment respects contrast and hence allows us to preserve structure even at a very low stipple budget. We also explore a variety of stylization effects, including screening and scratchboard, all within the unifying framework of stippling.


BibTeX

@inproceedings{Li:2011:SSP:1992917.1992938,
 author = {Li, Hua and Mould, David},
 title = {Structure-preserving Stippling by Priority-based Error Diffusion},
 booktitle = {Proceedings of Graphics Interface 2011},
 series = {GI '11},
 year = {2011},
 isbn = {978-1-4503-0693-5},
 location = {St. John's, Newfoundland, Canada},
 pages = {127--134},
 numpages = {8},
 url = {http://dl.acm.org/citation.cfm?id=1992917.1992938},
 acmid = {1992938},
 publisher = {Canadian Human-Computer Communications Society},
 address = {School of Computer Science, University of Waterloo, Waterloo, Ontario, Canada},
} 

  • Home
  • About Us
  • Contact
  • Login