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Image vectorization using optimized gradient meshes

2007; Association for Computing Machinery; Volume: 26; Issue: 3 Linguagem: Inglês

10.1145/1276377.1276391

1557-7368

Jian Sun, Liang Lin, Fang Wen, Heung‐Yeung Shum,

Computational Geometry and Mesh Generation

Recently, gradient meshes have been introduced as a powerful vector graphics representation to draw multicolored mesh objects with smooth transitions. Using tools from Abode Illustrator and Corel CorelDraw, a user can manually create gradient meshes even for photo-realistic vector arts, which can be further edited, stylized and animated. In this paper, we present an easy-to-use interactive tool, called optimized gradient mesh , to semi-automatically and quickly create gradient meshes from a raster image. We obtain the optimized gradient mesh by formulating an energy minimization problem. The user can also interactively specify a few vector lines to guide the mesh generation. The resulting optimized gradient mesh is an editable and scalable mesh that otherwise would have taken many hours for a user to manually create.