Gradation approximation for vector based compression of comic images

Kei Kawamura, Yuki Yamamoto, Hiroshi Watanabe

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationProceedings - International Conference on Image Processing, ICIP
    Pages489-492
    Number of pages4
    Volume3
    DOIs
    Publication statusPublished - 2005
    EventIEEE International Conference on Image Processing 2005, ICIP 2005 - Genova
    Duration: 2005 Sep 112005 Sep 14

    Other

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

    Fingerprint

    Erosion

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Kawamura, K., Yamamoto, Y., & Watanabe, H. (2005). Gradation approximation for vector based compression of comic images. In Proceedings - International Conference on Image Processing, ICIP (Vol. 3, pp. 489-492). [1530435] https://doi.org/10.1109/ICIP.2005.1530435

    Gradation approximation for vector based compression of comic images. / Kawamura, Kei; Yamamoto, Yuki; Watanabe, Hiroshi.

    Proceedings - International Conference on Image Processing, ICIP. Vol. 3 2005. p. 489-492 1530435.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kawamura, K, Yamamoto, Y & Watanabe, H 2005, Gradation approximation for vector based compression of comic images. in Proceedings - International Conference on Image Processing, ICIP. vol. 3, 1530435, pp. 489-492, IEEE International Conference on Image Processing 2005, ICIP 2005, Genova, 05/9/11. https://doi.org/10.1109/ICIP.2005.1530435
    Kawamura K, Yamamoto Y, Watanabe H. Gradation approximation for vector based compression of comic images. In Proceedings - International Conference on Image Processing, ICIP. Vol. 3. 2005. p. 489-492. 1530435 https://doi.org/10.1109/ICIP.2005.1530435
    Kawamura, Kei ; Yamamoto, Yuki ; Watanabe, Hiroshi. / Gradation approximation for vector based compression of comic images. Proceedings - International Conference on Image Processing, ICIP. Vol. 3 2005. pp. 489-492
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