.
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
Author(s): Henry Kang, Seungyong Lee, Charles K. Chui.
Proceedings: 5th International Symposium on Non-Photorealistic Animation (NPAR'07),
2007.
[BibTeX] 
Abstract:
This paper presents a non-photorealistic rendering technique that automatically generates a line drawing from a photograph. We aim at extracting a set of coherent, smooth, and stylistic lines that effectively capture and convey important shapes in the image. We ?rst develop a novel method for constructing a smooth direction ?eld that preserves the ?ow of the salient image features. We then introduce the notion of ?ow-guided anisotropic ?ltering for detecting highly coherent lines while suppressing noise. Our method is simple and easy to implement. A variety of experimental results are presented to show the effectiveness of our method in producing self-contained, high-quality line illustrations.
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
Henry Kang, Seungyong Lee.
Computer Graphics Forum, Vol. 27, No. 7, pp. 1773--1780,
2008. [BibTeX]