A Theory for Multiresolution Signal Decomposition: The Wavelet Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Embedding robust labels into images for copyright protection
KnowRight '95 Proceedings of the conference on Intellectual property rights and new technologies
IBM Systems Journal
Copyright protection of images using robust digital signatures
ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 04
IEEE Journal on Selected Areas in Communications
Electronic marking and identification techniques to discourage document copying
IEEE Journal on Selected Areas in Communications
Robustness-set in watermarking embedding systems using codebook classifications
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
Watermark Image Restoration Method Based on Block Hopfield Network
ISNN 2009 Proceedings of the 6th International Symposium on Neural Networks: Advances in Neural Networks - Part III
Adjustable prediction-based reversible data hiding
Digital Signal Processing
Visible watermarking images in high quality of data hiding
The Journal of Supercomputing
Hi-index | 12.05 |
We propose a new algorithm based on Harr discrete wavelet transform for the grayscale watermark. Digital watermark is a very popular research for copyright protection of electronic documents and media. With quick developing of information technology, more and more information was been hidden in electronic media. We propose visual cryptographic approach to generate two random shares of a watermark: one is embedded into the cover-image, another one is kept as a secret key for the watermark extraction later. This procedure would be dealt with Harr discrete wavelet transform and be left primary features of two shares. This approach is specially designed and is not easily changed and removed. After several attacks, it can still extract cognoscible graphic.