| Presentation | 1999/10/21 Study on a Shrinking Method for Dithered Images Osamu Takeuchi, Madoka Hasegawa, Shigeo Kato, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A resolution conversion method becomes necessary when images are exchanged between devices of different resolution, if devices are binary devices. However, because there are more high frequency patterns in dithered images than in facsimile images, many resolution conversion methods can not obtain satisfactory image quality when applied to dithered images. In this paper, we proposed a shrinking method for dithered images by Bayer mask. In our method, to compensate the difference of luminances between an original dithered image and the converted image, the similar technique as the Δ-* modulation method is introduced. Simulation results show that our method can obtain higher image quality than PRES or conversion method based on Hadamard transform. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | dithered image / shrinking method / resolution conversion |
| Paper # | HCS99-42 |
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| Conference Information | |
| Committee | HCS |
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| Conference Date | 1999/10/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Human Communication Science (HCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on a Shrinking Method for Dithered Images |
| Sub Title (in English) | |
| Keyword(1) | dithered image |
| Keyword(2) | shrinking method |
| Keyword(3) | resolution conversion |
| 1st Author's Name | Osamu Takeuchi |
| 1st Author's Affiliation | Graduate School of Engineering, Utsunomiya University() |
| 2nd Author's Name | Madoka Hasegawa |
| 2nd Author's Affiliation | Graduate School of Engineering, Utsunomiya University |
| 3rd Author's Name | Shigeo Kato |
| 3rd Author's Affiliation | Graduate School of Engineering, Utsunomiya University |
| Date | 1999/10/21 |
| Paper # | HCS99-42 |
| Volume (vol) | vol.99 |
| Number (no) | 384 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |