Non-Photorealistic Computer Graphics Library

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Found 24 item(s) authored in "1998".
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Master Thesis A Framework for Non-Realistic Projections
Jonathan Levene.
Massachusetts Institute of Technology, May, 1998. [BibTeX]

Proceedings A Non-Photorealistic Lighting Model For Automatic Technical Illustration
Amy A. Gooch, Bruce Gooch, Peter Shirley, Elaine Cohen.
SIGGRAPH 98, pp. 447--452, July, 1998. [BibTeX]

Proceedings A Resolution Independent Nonrealistic Imaging System for Artistic Use
Atsushi Kasao, Masayuki Nakajima.
IEEE International Conference on Multimedia Computing and Systems, pp. 358--367, 1998. [BibTeX]

Proceedings An Approach to Visualizing Transparency in Computer-Generated Line Drawings
Jörg Hamel, Stefan Schlechtweg, Thomas Strothotte.
IV'98, 1998. [BibTeX]

In Collection An interface for the interactive design of artistic screens
N. Rudaz, Roger D. Hersch, Victor Ostromoukhov.
Electronic Publishing, Artistic Imaging and Digital Typography, Springer Verlag, Lecture Notes in Computer Science 1375, pp. 1--10, 1998. [BibTeX]

Proceedings Animating Frame-To-Frame-Coherent Line Drawings for Illustrated Purposes
Maic Masuch, Lars Schumann, Stefan Schlechtweg.
Proceedings of Simulation und Visualisierung '98, SCS Europe, Peter Lorenz, Bernhard Preim, pp. 101-112, 1998. [BibTeX]

Proceedings Art in the Pipeline
S. M. F. Treavett.
Proc. 16th Eurographics UK Conference, March, 1998. [BibTeX]

Proceedings Computer-Generated Floral Ornament
Douglas E. Zongker, Michael Wong, David H. Salesin.
SIGGRAPH 98, 1998. [BibTeX]

Proceedings Edge enhancement issues in halftoning

Author(s): John W. Buchanan, Lisa M. Streit, Oleg Veryovka.
Proceedings: Graphics Interface (GI'98), pp. 209--216, 1998.
[BibTeX] Find this paper on Google

Abstract:
The correct display of edges in half-toned images is necessary for accurate image reproduction. This problem has been addressed by pre-processing the image to enhance the edges or by altering the half-toning algorithm to account for edges. In this paper we present a post-processing edge enhancement technique that is applicable to all half-toning algorithms. We identify two types of edge pixels in the image; dark and light edge pixels. Edges in an image are highlighted by setting the dark/light edge pixels to black/white. We tested our method on a modern laser printer. Because of this our evaluation of the technique is restricted to clustered half-toning methods. We evaluated the effect of enhancing edges by conducting a user survey to determine the perceived value of the different edge enhancement methods. The results of the user survey, while not statistically significant, indicate that our post-processing technique achieves comparable results to previous edge enhancement methods. Our technique is simple to implement and can be applied to any half-toning technique and thus is a good default edge-enhancing approach.

Article Importance Driven Halftoning
Lisa M. Streit, John W. Buchanan.
Computer Graphics Forum (EG'98), Vol. 17, No. 3, 1998. [BibTeX]

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