A technique of phase shift watermarking against overwriting attacks (Japanese)

In: Transactions of the Information Processing Society of Japan   ;  40 ,  6  ;  2819-2826  ;  1999
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We propose how to identify an original watermark from a picture in opposition to an attacker who overwrites another watermark to it by similar means. We make use of the relationship between the multi-resolution representations of the original and the embedded pictures. Then, we utilize the basic characteristic such that the phase of picture shifts a little from it depending on the change of amplitude of spatial frequency. The watermark does not give the image serious damage. This pattern can be deduced among the multi-overwritten watermarks, independently. Therefore, this method can be effective for digital watermarking.

Table of contents – Volume 40, Issue 6

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The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

2510
Process scheduling policy for a WWW server based on its contents
Suranauwarat, S. / Taniguchi, H. | 1999
2543
A smart virtual machine for heterogeneous distributed environments: PivotVM
Osawa, N. | 1999
2563
An implementation of distributed shared memory in wide area network and its performance evaluation
Saito, S. / Kunieda, Y. / Okubo, E. | 1999
2645
iReserve architecture: an integrated resource reservation mechanism
Nishio, N. / Tokuda, H. | 1999
2669
BiCGStab(l) method with varying l in adaption
Moriya, K. / Nodera, T. | 1999
2679
OCR error correction using stochastic language models
Takeuchi, K. / Matsumoto, Y. | 1999
2765
A database relocation method using database migration based on access information
Akiyama, T. / Hara, T. / Harumoto, K. / Tsukamoto, M. / Nishio, S. | 1999
2799
Pattern description in the IntelligentPad system, and its application to system development
Hirano, R. / Tanaka, Y. | 1999
2819
A technique of phase shift watermarking against overwriting attacks
Fukuoka, Y. / Matsui, K. | 1999