Journal of KIISE:Computing Practices and Letters (한국정보과학회논문지:컴퓨팅의 실제 및 레터)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
권호 표지

Oriental Painting non-photorealistic Rendering by using a Single 2-D Image

한 장의 2차원 이미지를 이용한 동양화적 비사실적 랜더링

  • 방승주 (중앙대학교 첨단영상대학원) ;
  • 박경주 (중앙대학교 첨단영상대학원)
  • Received : 2009.08.14
  • Accepted : 2009.12.04
  • Published : 2010.03.15
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents an automatic Oriental ink-rendering technique that recreates the artistic style of Oriental paintings from a single image. In Oriental paintings are characterized by strokes with various thickness and disordered dispersion. In this study, a stroke drawing method was developed based on the canny edge detector and radial curvature that are suitable for lines with varied thickness even along a single stroke. A dispersion-shading method was likewise developed by applying a set of iterated dual-filtering, and intensity exaggeration methods. The dispersion-shading method is designed to increase the local shade details, to decrease the global shade. Unlike the existing watercolor-rendering and abstraction system the proposed dispersion-shading method achieves disordered shade details rather than simplification.

본 논문에서는 한 장의 2-D 이미지를 입력으로 받아 자동적으로 동양화처럼 보이는 그림으로 바꾸어 주는 비 사실적 랜더링(NPR) 시스템을 제안한다. 동양화의 선은 두께가 다양하고 끝이 갈라지는 특성이 있고, 농담의 변화를 주어 대상 물체의 입체감을 표현하는 경향이 있다. 본 논문에서는 이미지의 외곽선 추출을 바탕으로 curvature를 사용하여 선을 따라 변하는 두께를 가진 선을 생성한다. 또한 기존에 수채화 스타일에서 제안된 농담 표현방법과는 반대로 지역적인 세부표현을 증가시키고 광역적인 농담을 줄여준다. 본 논문은 외곽선 추출, 선 그리기를 통하여 다양한 두께의 선을 표현해 주는 방법과, 이미지의 필터링과 intensity 변환을 통한 농담을 표현하는 일련의 연속적인 방법을 제안하다.

Keywords

References

  1. Winkenbach G, Salesin DH. Computer-generated pen-and-ink illustration. In: Proceedings of the 21st annual conference on computer graphics and interactive techniques, pp.91-100, 1994.
  2. Bousseau, Adrien and Neyret, Fabrice and Thollot, Joelle and Salesin, David. Video watercolorization using bidirectional texture advection. ACM Trans. Graph, 104, 2007.
  3. Orzan A., Bousseau A., Barla P., thollot J.: Structure-preserving manipulation of photographs. In NPAR '07: Proceedings of the 5th international symposium on Nonphotorealistic animation and rendering ACM, pp.103-110.
  4. Nelson S.-H. Chu. MoXi: real-time ink dispersion in absorbent paper, International Conference on Computer Graphics and Interactive Techniques archive ACM SIGGRAPH 2005 Papers, pp.504-511, 2005.
  5. Yeh JW, Ouhyoung M. Non-photorealistic rendering in Chinese painting of animals. Journal of System Simulation, 14(6), 1220-4, 2002.
  6. Way DL, Shih ZC. The synthesis of rock textures in Chinese landscape painting. Eurographics 2001;20(3):123-31.
  7. Adrian David Cheok. Humanistic Oriental are created using automated computer processing and non-photorealistic rendering, Computer & Graphics, pp.280-291, 2007.
  8. Todd Goodwin, Ian Vollick, Aaron Hertzmann, Isophote distance: a shading approach to artistic stroke thickness, Proceedings of the 5th international symposium on Non-photorealistic animation and rendering, pp.53-62, 2007.
  9. Canny. A Computational Approach to Edge Detection, IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.679-698, 1986.