Pencil Art Generation Method Focusing on Pencil Line Expression

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  • 線分表現に着目した鉛筆画像生成法
  • センブン ヒョウゲン ニ チャクモク シタ エンピツ ガゾウ セイセイホウ

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<p>In this paper, new pencil art generation method which focuses on pencil line expression is proposed. In proposed method, outline of pencil art is generated by Pencil stroke map, and its shading is generated by LIC (Line Integral Convolution) method. The both method have features such as they are excel at expressing line of pencil art. Pencil stroke map can generate high quality outline of pencil art by overwriting with short pencil line, but if the length of lines are too long for size of graphic, there is a problem that resulting outline lose its shape. On this problem, this study improve that by classifying graphics of input image by size by morphological operation and generate resulting outline with plural length of pencil line. And, hatching texture which is basic technique of pencil art can be generated by LIC method based on gray level of input image, Moreover, this study show that the hatching can be cross-hatching by overwriting themselves, and blending can be generated by applying smoothing filter. Proposed method generate high quality pencil art by combining those two method. In experiment, Effectiveness of proposed method is shown by comparing with multiple conventional methods.</p>

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