17 February 2014 Onomatopoeia characters extraction from comic images using constrained Delaunay triangulation
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A method for extracting onomatopoeia characters from comic images was developed based on stroke width feature of characters, since they nearly have a constant stroke width in a number of cases. An image was segmented with a constrained Delaunay triangulation. Connected component grouping was performed based on the triangles generated by the constrained Delaunay triangulation. Stroke width calculation of the connected components was conducted based on the altitude of the triangles generated with the constrained Delaunay triangulation. The experimental results proved the effectiveness of the proposed method.
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Xiangping Liu, Xiangping Liu, Kenji Shoji, Kenji Shoji, Hiroshi Mori, Hiroshi Mori, Fubito Toyama, Fubito Toyama, "Onomatopoeia characters extraction from comic images using constrained Delaunay triangulation", Proc. SPIE 9029, Visual Information Processing and Communication V, 90290G (17 February 2014); doi: 10.1117/12.2039283; https://doi.org/10.1117/12.2039283

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