A security of a watermarking for copyright protection using wavelet transform (Japanese)

In: Transactions of the Information Processing Society of Japan   ;  38 ,  12  ;  2640-2647  ;  1997
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Conventional watermarking using wavelet transforms utilizes the frequency information which is given from an orthogonal Haar wavelet filter to the original image. But it may be very weak against a malicious alteration attack because hidden information could be eliminated using a low-pass filter. Therefore, the authors propose a new watermarking system based on experiments. The system has two features. The first is the active utilization of multiresolutional representation with a wavelet transform. The second is embedding watermarking at a lower frequency field.

Table of contents – Volume 38, Issue 12

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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.

2411
A simulated annealing approach using random compound move for sequential partitions problem
Kaji, T. / Ohuchi, A. | 1997
2419
Techniques to reduce computation time in decision procedure for prenex normal form Presburger sentences bounded only by existential quantifiers
Morioka, S. / Shibata, N. / Higashino, T. / Taniguchi, K. | 1997
2440
Identifying the coding system and language of on-line documents using statistical language models
Kikui, G. | 1997
2458
Communication aid for ALS patients based on event related brain potentials
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2479
The construction of decision tree for rough classification in handwritten character recognition
Shinozawa, Y. / Okoma, S. | 1997
2509
Virtual sculpturing: a method of interactive modeling in virtual space
Mizuno, S. / Okada, M. / Toriwaki, J. / Yokoi, S. | 1997
2517
Proposal of QoS-supported CG data transmission method over ATM network
Tsukakoshi, M. | 1997
2566
A neural networks approach for query cost evaluation
Boulos, J. / Viemont, Y. / Ono, K. | 1997
2608
Proposal and evaluation of time critical communication protocol with variable token holding time
Koui, Y. / Ideguchi, T. / Fujii, T. / Watanabe, A. / Yabe, M. / Siratori, N. | 1997
2617
A design and implementation of real-time handwriting cooperative work system for creative thought support on distributed environment
Nakajima, K. / Hayakawa, E. / Namiki, M. / Takahashi, N. | 1997
2640
A security of a watermarking for copyright protection using wavelet transform
Sakai, Y. / Ishizuka, H. / Sakurai, K. | 1997
2648
Discrimination of the road condition based on image information
Yamada, M. / Horiba, I. / Sugie, N. / Ueda, K. | 1997
2656
Optical fiber access network design using a genetic algorithm
Takeda, K. | 1997