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[IBS+05]  Beyond Pixels: Illustration with Vector Graphics

Isenberg:2005:BPI (Technical report)
Author(s)Isenberg T., Brennecke A., Sousa M.C. and Carpendale S.
Title« Beyond Pixels: Illustration with Vector Graphics »
Number2005-804-35
InstitutionDepartment of Computer Science, University of Calgary
Year2005
AddressCanada
URLhttp://pharos.cpsc.ucalgary.ca/Dienst/UI/2.0/Describe/ncstrl.ucalgary_cs/2005-804-35

Abstract
This report presents a novel vector rendering pipeline that allows us to easily break the pixel barrier and create high-quality illustrations. Recently, most graphic research has been directed towards rendering pixel images that appear realistic. In contrast, we investigate the generation of vector graphic illustrations using non-photorealistic techniques such as line rendering and Gooch shading. By combining vector output from both shading and line rendering of 3D models we create high-quality illustrations that can directly be used in print reproduction. Our approach uses a vector graphic pipeline that tracks multiple attributes of strokes and uses them for stylization. This allows to have multiple layers of line rendering such as different stroke types or visible and hidden parts of strokes, each treated differently according to specific stylization rules. Using high quality vector graphics (as opposed to pixel renditions) for representing illustration is essential, in particular, in the print reproduction process. Foremost, vector graphics can be reproduced at any desired resolution; they do not suffer from the resolution dependence of pixel images. In addition, only vector graphics can capture fine details accurately while maintaining a reasonable file size. Finally, vector graphics do not need to be half-toned when printed as long as spot colors are used. Even if some layers of the image use, e. g., shading, only those parts of the vector graphic need to be half-toned that actually do not make use of the available spot colors. Thus, we can combine both shading and line layers without compromising print quality.

BibTeX code
@techreport{Isenberg:2005:BPI,
  optpostscript = {},
  number = {2005-804-35},
  month = dec,
  author = {Tobias Isenberg and Angela Brennecke and Mario Costa Sousa and
            Sheelagh Carpendale},
  optkey = {},
  optannote = {},
  opttype = {},
  url = {http://pharos.cpsc.ucalgary.ca/Dienst/UI/2.0/Describe/ncstrl.ucalgary_cs/2005-804-35},
  address = {Canada},
  localfile = {papers/Isenberg.2005.BPI.pdf},
  optkeywords = {},
  optciteseer = {},
  optdoi = {},
  optwww = {},
  abstract = {This report presents a novel vector rendering pipeline that allows
              us to easily break the pixel barrier and create high-quality
              illustrations. Recently, most graphic research has been directed
              towards rendering pixel images that appear realistic. In contrast,
              we investigate the generation of vector graphic illustrations
              using non-photorealistic techniques such as line rendering and
              Gooch shading. By combining vector output from both shading and
              line rendering of 3D models we create high-quality illustrations
              that can directly be used in print reproduction. Our approach uses
              a vector graphic pipeline that tracks multiple attributes of
              strokes and uses them for stylization. This allows to have
              multiple layers of line rendering such as different stroke types
              or visible and hidden parts of strokes, each treated differently
              according to specific stylization rules. Using high quality vector
              graphics (as opposed to pixel renditions) for representing
              illustration is essential, in particular, in the print
              reproduction process. Foremost, vector graphics can be reproduced
              at any desired resolution; they do not suffer from the resolution
              dependence of pixel images. In addition, only vector graphics can
              capture fine details accurately while maintaining a reasonable
              file size. Finally, vector graphics do not need to be half-toned
              when printed as long as spot colors are used. Even if some layers
              of the image use, e. g., shading, only those parts of the vector
              graphic need to be half-toned that actually do not make use of the
              available spot colors. Thus, we can combine both shading and line
              layers without compromising print quality.},
  title = {{B}eyond {P}ixels: {I}llustration with {V}ector {G}raphics},
  year = {2005},
  institution = {Department of Computer Science, University of Calgary},
}

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