Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Opto-Electronic Engineering》 2016-11
Add to Favorite Get Latest Update

Adaptive Robust Image Watermarking Based on DCT and Hamming Code

REN Keqiang;ZHANG Dandan;WU Fan;School of Information Engineering, Jiangxi University of Science and Technology;  
In order to improve the robustness of digital image watermarking, a digital image watermarking algorithm is proposed based on discrete cosine transform and Hamming code. Firstly, Arnold transform and Hamming code are used to scrambling encryption and encoding of the binary watermarking image. Then, the carrier image is divided to 8×8 blocks, and each sub-block is carried on two-dimensional discrete cosine transform respectively. Finally, the encrypted and encoded watermarking is embedded into the middle frequency coefficients of the two-dimensional discrete cosine transform, the embedding strength is adaptively determined according to the characteristics of the carrier image. The experimental results show that the security and the imperceptibility of the watermarking are very good, not only it can effectively resist the attack of noise, resampling, filtering, compression, rotation, shearing and so on, but has good robustness against the many kinds of combined attack as well, and implements adaptive embedding and blind extracting of watermarking.
【Key Words】: digital image watermarking Arnold transform Hamming code discrete cosine transform adaptive
【Fund】: 国家自然科学基金项目(61501210)
【CateGory Index】: TP309.7
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved