.
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
Henry Kang, Seungyong Lee, Charles K. Chui.
IEEE Transactions on Visualization and Computer Graphics, Vol. 15, No. 1, pp. 62--76,
2009. [BibTeX]
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
Author(s): Henry Kang, Seungyong Lee.
Article: Computer Graphics Forum, Vol. 27, No. 7, pp. 1773--1780,
2008.
[BibTeX] [DOI] 
Abstract:
This paper presents a simple algorithm for producing stylistic abstraction of a photograph. Based on mean curvature flow in conjunction with shock filter, our method simplifies both shapes and colors simultaneously while preserving important features. In particular, we develop a constrained mean curvature flow, which outperforms the original mean curvature flow in conveying the directionality of features and shape boundaries. The proposed algorithm is iterative and incremental, and therefore the level of abstraction is intuitively controlled. Optionally, simple user masking can be incorporated into the algorithm to selectively control the abstraction speed and to protect particular regions. Experimental results show that our method effectively produces highly abstract yet feature-preserving illustrations from photographs.