| Presentation | 2011-11-11 High-quality Resolution Reduction Method Preserving Periodical Structure for Halftone Image Kaoru ISHITO, Kazuki KATAGISHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new resolution reduction method for halftone images. Recently, smartphones or tablet PCs have become widespread. When viewing comics on mobile devices as e-books, image resolution conversion is required, because there are various resolution devices. If a comic image is reduced with conventional resolution conversion methods using interpolating functions such as bicubic interpolation, moire that leads to deterioration in image quality is generated, because a comic image has halftones having periodic structures. In this paper, we propose a resolution reduction method for halftone images which preserve a periodic structure of original images. Experiments show that a moire is not generated with our proposed method, and the method is superior in image quality and computational time to the conventional bicubic interpolation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | resolution conversion / halftone / moire / interpolating function / bicubic |
| Paper # | IE2011-79 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2011/11/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-quality Resolution Reduction Method Preserving Periodical Structure for Halftone Image |
| Sub Title (in English) | |
| Keyword(1) | resolution conversion |
| Keyword(2) | halftone |
| Keyword(3) | moire |
| Keyword(4) | interpolating function |
| Keyword(5) | bicubic |
| 1st Author's Name | Kaoru ISHITO |
| 1st Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba() |
| 2nd Author's Name | Kazuki KATAGISHI |
| 2nd Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba |
| Date | 2011-11-11 |
| Paper # | IE2011-79 |
| Volume (vol) | vol.111 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |