| Presentation | 2013-09-13 A Robust Watermarking Method with Systematic Block Diffusion and DCT Kazuo OHZEKI, Kazutaka Bannai, Yuan-yu Wei, Yutaka Hirakawa, Kiyotsugu Sato, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The digital watermark has been taken as an element of security. Authors has proposed a systematic block diffusion digital-watermarking system, which at first, embeds watermark in a reduced block, then embeds the difference of an original image and an enlarged image in which the watermark is embedded in the reduced block with diffusing process. Since a reduced image is not only expanded but it is systematically spread in the expanded block, robustness increases. Embedding is made by linear transformation DCT and quantization. Beyond a trial in a small block size in a previous experiment with an asymmetrical chirp transform, experiments with a large size are conducted in this paper. Under JPEG compression, it is robust even at 1/70 of strong compression. Moreover, it has robustness for cropping attacks. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Shrink / Diffusion / DCT / Systematic block diffusion / cropping |
| Paper # | SIS2013-24 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2013/9/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Robust Watermarking Method with Systematic Block Diffusion and DCT |
| Sub Title (in English) | |
| Keyword(1) | Shrink |
| Keyword(2) | Diffusion |
| Keyword(3) | DCT |
| Keyword(4) | Systematic block diffusion |
| Keyword(5) | cropping |
| 1st Author's Name | Kazuo OHZEKI |
| 1st Author's Affiliation | Div. of Functional Control Systems, Shibaura Institute of Technology() |
| 2nd Author's Name | Kazutaka Bannai |
| 2nd Author's Affiliation | / Div. of Functional Control Systems, Shibaura Institute of Technology |
| 3rd Author's Name | Yuan-yu Wei |
| 3rd Author's Affiliation | Div. of Functional Control Systems, Shibaura Institute of Technology |
| 4th Author's Name | Yutaka Hirakawa |
| 4th Author's Affiliation | College of Industrial Technology |
| 5th Author's Name | Kiyotsugu Sato |
| 5th Author's Affiliation | |
| Date | 2013-09-13 |
| Paper # | SIS2013-24 |
| Volume (vol) | vol.113 |
| Number (no) | 202 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |