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Image Stylization (NPR)
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Non-photorealistic rendering (NPR) is a domain of
computer graphics that has received more and more attention in the past
decade. Definitely different from realistic rendering, non-photorealistic
rendering concentrates on communicating the main context of an image and
explores the rendering effect of the scene with the artistic styles, rather
than seeking for subtle geometry details and naturally physical attribute. We present an approach for generating paintings on the photographic images with the style encoded by the example paintings. We adopt representative brushes extracted from the example paintings as the painting primitives. Our system first divides the given photographic image into several regions on which we synthesize a grounding layer with texture patches extracted from the example paintings. Then, we paint those regions layer by layer using brushes stochastically chosen from the brush library, with further brush color and shape perturbations. The brush direction is determined by a direction field either synthesized from the examples or constructed by a convenient user interactive manner. Our approach offers flexible and intuitive user control over the painting process and style. Experiments demonstrate appealing rendering effects |
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The painting result simulting Van Gogh's Olive Groves |
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The painting result (bottom right) simulating Van Gogh's Wheatfield (top). |
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Papers: Yanwen Guo, Jinhui Yu, Xiaodong Xu, Jin Wang, Qunsheng Peng, Example Based Painting Generation. Computer Graphics International 2006 (CGI 2006), Also in Journal of Zhejiang University Science, 2006, 7(7), pp. 1152-1159. (EI) |
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