.
Curvature-based stroke rendering
Suguru Saito, Akane Kani, Youngha Chang, Masayuki Nakajima.
The Visual Computer, Vol. 24, No. 1, pp. 1--11,
2008. [BibTeX]
Example-based color stylization based on categorical perception
Youngha Chang, Keiji Uchikawa, Suguru Saito, Masayuki Nakajima.
1st Symposium on Applied perception in graphics and visualization, pp. 91--98, ACM Press,
2004. [BibTeX]
Example-Based Color Stylization of Images
Youngha Chang, Suguru Saito, Keiji Uchikawa, Masayuki Nakajima.
ACM Transactions on Applied Perception (TAP), Vol. 2, No. 3, pp. 322--345, July,
2005. [BibTeX]
Example-based color transformation for image and video
Youngha Chang, Suguru Saito, Masayuki Nakajima.
3rd International Conference on Computer Graphics and Interactive Techniques in Australasia and South East Asia (GRAPHITE'05), pp. 347--353, Dunedin, New Zealand,
2005. [BibTeX]
Generation of Varying Line Thickness
Author(s): Suguru Saito, Akane Kani, Youngha Chang, Masayuki Nakajima.
Proceedings: Computer Graphics International, pp. 294, Tokyo, Japan, July 09 - 11,
2003.
[BibTeX] 
Abstract:
This paper describes an algorithm that generates lines of varying thickness without any special information about the lines. The thickness is derived from only curvature and lengths from both ends. Therefore the algorithm is applicable in a variety of line rendering situations, for example 3D rendering engine for high quality cel-animation-like effects, reuse of geometrical data designed by CAD for advertising purposes, and photo retouching processes with edge detection methods and so on. In addition, using the generated varying thickness, this paper also describes algorithms for shading and embossing line rendering.