COLORBRUSH: ANIMATED DIFFUSION FOR INTUITIVE COLORIZATION SIMULATING WATER PAINTING

Authors

Nicolas Märki (ETH Zurich)
Oliver Wang (Disney Research Zurich)
Markus Gross (Disney Research Zurich)
Aljoscha Smolic (Disney Research Zurich)

International Conference on Image Processing (ICIP) 2014

October 27, 2014

COLORBRUSH- ANIMATED DIFFUSION FOR INTUITIVE COLORIZATION SIMULATING WATER PAINTING-Image

Fig. 1: Pipeline of our approach for animated diffusion simulating water painting.

Water painting is an art, where the result and experience strongly depend on the process of creating it. Color is injected by the artist in a controlled way and diffuses into a final state. We present a system to simulate such a process, which builds on existing colorization approaches. The geodesic distance builds the mathematical foundation for our animated diffusion. We add a time-dependent weight function to generate a diffusion-like spreading effect. Tiled approximation is used to achieve interactive rates on modern mobile devices. The result is a colorization framework simulating water painting that allows giving real-time feedback on touch events with the limited hardware resources of a tablet computer.

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