標題: | A VQ-based robust multi-watermarking algorithm |
作者: | Huang, HC Wang, FH Pan, JS 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | digital watermarking;vector quantization;JPEG;StirMark |
公開日期: | 1-Jul-2002 |
摘要: | New methods for digital image watermarking based on the characteristics of vector quantization (VQ) are proposed. In contrast with conventional watermark embedding algorithms to embed only one watermark at a time into the original source; we present one algorithm to embed multiple watermarks for copyright protection. The embedding and extraction processes are efficient for implementing with conventional VQ techniques; and they can be accomplished in parallel to shorten the processing time. After embedding, embedder would output one watermarked reconstruction image and several secret keys associated with the embedded watermarks. These secret keys are then registered to the third party to preserve the ownership of the original source in order to prevent the attackers from inserting counterfeit watermarks. Simulation results show that under no attacks, the embedded watermarks could be perfectly extracted. If there are some intentional attacks in our simulation, all the watermarks could survive to protect the copyrights. Therefore, we are able to claim the robustness, usefulness, and ease of implementation of our algorithm. |
URI: | http://hdl.handle.net/11536/28667 |
ISSN: | 0916-8508 |
期刊: | IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES |
Volume: | E85A |
Issue: | 7 |
起始頁: | 1719 |
結束頁: | 1726 |
Appears in Collections: | Articles |