Information Hiding Techniques for Steganography and Digital Watermarking
Information Hiding Techniques for Steganography and Digital Watermarking
The first 50 years of electronic watermarking
EURASIP Journal on Applied Signal Processing - Emerging applications of multimedia data hiding
Second Generation Benchmarking and Application Oriented Evaluation
IHW '01 Proceedings of the 4th International Workshop on Information Hiding
Perceptual Digital Watermarking for Image Authentication in Electronic Commerce
Electronic Commerce Research
Multimedia Security: Steganography and Digital Watermarking Techniques for Protection of Intellectual Property
Digital Watermarking of Three-Dimensional Polygonal Models in the Spherical Coordinate System
CGI '04 Proceedings of the Computer Graphics International
Watermark Extraction by Magnifying Noise and Applying Global Minimum Decoder
ICIG '04 Proceedings of the Third International Conference on Image and Graphics
Robustness Analysis of Watermarking Schemes Based on Two Novel Transforms
ICICIC '06 Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 3
A new approach for optimization in image watermarking by using genetic algorithms
IEEE Transactions on Signal Processing
Statistically Robust Detection of Multiplicative Spread-Spectrum Watermarks
IEEE Transactions on Information Forensics and Security
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
Analysis and design of watermarking algorithms for improved resistance to compression
IEEE Transactions on Image Processing
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
IEEE Transactions on Circuits and Systems for Video Technology
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In this paper, a discrete cosine transform (DCT) based blind watermarking scheme based on spread spectrum communications is proposed. We perform block-based DCT (BDCT) on the host image; then using the DC coefficients of each block, we construct a low-resolution approximation image. We apply BDCT on this approximation image, then watermark is embedded by adding a pseudo random noise sequence into its high frequencies. In detection stage, we extract the approximation image from the watermarked image, then the same pseudo random noise sequence is generated, and its correlation is computed with high frequencies of the watermarked approximation image. In our method, higher robustness is obtained because of embedding the watermark in low frequencies. In addition, higher imperceptibility is gained by scattering the watermark's bit in different blocks. Compared with related works, our method proved to be highly resistant in cases of many common attacks, while preserving high peak signal to noise ratio for the watermarked images.