- Fast Bilateral Filter using ETF(Edget Tangent Field) [2] Source, Demo
- Diffusion-of-Gaussians(DoG) [1] Source, Demo
- Toon Shader [1,3] Source, Demo
- Winnemöller, H., Kyprianidis, J. E., & Olsen, S. C. (2012). XDoG: An eXtended difference-of-Gaussians compendium including advanced image stylization. Computers & Graphics, 36(6), pp. 740-753.
- Kyprianidis, J. E., & Döllner, J. (2008). Image Abstraction by Structure Adaptive Filtering. In: Proc. EG UK Theory and Practice of Computer Graphics, pp. 51–58.
- Winnemöller, Holger, Sven C. Olsen, and Bruce Gooch. "Real-time video abstraction." ACM Transactions On Graphics (TOG). Vol. 25. No. 3. ACM, 2006.