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Sketch and shade: an interactive assistant for sketching and shading

Published: 29 July 2017 Publication History

Abstract

We present a drawing assistant for sketching and for assisting users in shading a hand drawn sketch. The augmented reality based system uses a sketch made by a professional and uses it to help inexperienced users to do sketching and shading. The input image is converted to a set of points based on simple heuristics for providing a "connect the dots" interface for a user to aid sketching. With the help of a 2.5D mesh generated by our algorithm, the system assists the user by providing information about the colors that can be given in different parts of the sketch. The system was tested with users of different age groups and skill levels, indicating its usefulness.

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References

[1]
Takeo Igarashi, Satoshi Matsuoka, and Hidehiko Tanaka. 1999. Teddy: A Sketching Interface for 3D Freeform Design. In Proceedings of the 26th Annual Conference on Computer Graphics and Interactive Techniques (SIGGRAPH '99). ACM Press/Addison-Wesley Publishing Co., New York, NY, USA, 409--416.
[2]
Scott F. Johnston. 2002. Lumo: Illumination for Cel Animation. In Proceedings of the 2Nd International Symposium on Non-photorealistic Animation and Rendering (NPAR '02). ACM, New York, NY, USA, 45-ff.
[3]
Daniel Sýkora, Ladislav Kavan, Martin Čadík, Ondřej Jamriška, Alec Jacobson, Brian Whited, Maryann Simmons, and Olga Sorkine-Hornung. 2014. Ink-and-ray: Bas-relief Meshes for Adding Global Illumination Effects to Hand-drawn Characters. ACM Trans. Graph. 33, 2, Article 16 (April 2014), 15 pages.

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  1. Sketch and shade: an interactive assistant for sketching and shading

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      cover image ACM Conferences
      CAE '17: Proceedings of the symposium on Computational Aesthetics
      July 2017
      71 pages
      ISBN:9781450350808
      DOI:10.1145/3092912
      Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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      New York, NY, United States

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      Published: 29 July 2017

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      Author Tags

      1. delaunay triangulation
      2. inflation
      3. paper sketch
      4. shading

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      Overall Acceptance Rate 11 of 25 submissions, 44%

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