Gradation approximation for vector based compression of comic images

Kei Kawamura, Yuki Yamamoto, Hiroshi Watanabe

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In this paper, we propose a method to vectorize comic images including halftone dots. Our method can prevent the jaggy and moire phenomena when the images are enlarged and shrank. The method contains three modules: halftone dots separation, gradation approximation, and vectorization. At the first module, small isolated areas and altered areas by dilation and erosion operations are separated into halftone dots images. At the second module, areas of halftone are approximated by contours and gradation parameters. At the last module, both halftone areas and line drawings are vectorized and approximated by smooth contours. The size of compressed file produced by our method is equal or smaller than JBIG compression. Validity of the proposed method is confirmed by experimental results.

本文言語English
ホスト出版物のタイトルIEEE International Conference on Image Processing 2005, ICIP 2005
ページ489-492
ページ数4
DOI
出版ステータスPublished - 2005
イベントIEEE International Conference on Image Processing 2005, ICIP 2005 - Genova, Italy
継続期間: 2005 9 112005 9 14

出版物シリーズ

名前Proceedings - International Conference on Image Processing, ICIP
3
ISSN(印刷版)1522-4880

Conference

ConferenceIEEE International Conference on Image Processing 2005, ICIP 2005
CountryItaly
CityGenova
Period05/9/1105/9/14

ASJC Scopus subject areas

  • Engineering(all)

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