| Presentation | 2005/3/11 An Improvement of the Watermark Detection in the Correlation-based Image Watermarking Methods Akio MIYAZAKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper aims to improve the accuracy of watermark detection in correlation-based watermarking methods for images. In the correlation-based watermarking method, watermark detection is carried out by computing the correlation between a watermarked image and a watermark code (pseudorandom sequence) to be checked for the presence. Hence its accuracy depends on the characteristics of watermark code and host images. In this paper, we first show an experimental result that a certain image may cause watermark detection errors. Then we develop an improved version of the watermark embedding process to be effective in such a situation. The improvement is accomplished by designing a whitening filter using a nonlinear programming algorithm. Numerical experiments show good performance as expected by us. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital watermark / correlation-based watermarking / digital image / pseudorandom series / wavelet transform |
| Paper # | SIS2004-69 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2005/3/11(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Improvement of the Watermark Detection in the Correlation-based Image Watermarking Methods |
| Sub Title (in English) | |
| Keyword(1) | digital watermark |
| Keyword(2) | correlation-based watermarking |
| Keyword(3) | digital image |
| Keyword(4) | pseudorandom series |
| Keyword(5) | wavelet transform |
| 1st Author's Name | Akio MIYAZAKI |
| 1st Author's Affiliation | Faculty of Information Science, Kyushu Sangyo University() |
| Date | 2005/3/11 |
| Paper # | SIS2004-69 |
| Volume (vol) | vol.104 |
| Number (no) | 736 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |