.
A Hidden-picture Puzzles Generator
Jong-Chul Yoon, In-Kwon Lee, Henry Kang.
Computer Graphics Forum, Vol. 27, No. 7, pp. 1869--1877,
2008. [BibTeX]
Coherent Line Drawing
Henry Kang, Seungyong Lee, Charles K. Chui.
5th International Symposium on Non-Photorealistic Animation (NPAR'07),
2007. [BibTeX]
Flow-Based Image Abstraction
Author(s): Henry Kang, Seungyong Lee, Charles K. Chui.
Article: IEEE Transactions on Visualization and Computer Graphics, Vol. 15, No. 1, pp. 62--76,
2009.
[BibTeX] [DOI] 
Abstract:
We present a nonphotorealistic rendering technique that automatically delivers a stylized abstraction of a photograph. Our approach is based on shape/color filtering guided by a vector field that describes the flow of salient features in the image. This flow-based filtering significantly improves the abstraction performance in terms of feature enhancement and stylization. Our method is simple, fast, and easy to implement. Experimental results demonstrate the effectiveness of our method in producing stylistic and feature-enhancing illustrations from photographs.
Image and Video Abstraction by Anisotropic Kuwahara Filtering
Jan Eric Kyprianidis, Henry Kang, Jürgen Döllner.
Computer Graphics Forum (Special Issue on Pacific Graphics 2009), Vol. 28, No. 7, pp. 1955--1963, October,
2009. [BibTeX]
Image and Video Abstraction by Coherence-Enhancing Filtering
Jan Eric Kyprianidis, Henry Kang.
Computer Graphics Forum, Vol. 30, No. 2, pp. 593--602,
2011. [BibTeX]
Shape-simplifying Image Abstraction
Henry Kang, Seungyong Lee.
Computer Graphics Forum, Vol. 27, No. 7, pp. 1773--1780,
2008. [BibTeX]