A dual watermarking technique for images
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 2)
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
A Stochastic Approach to Content Adaptive Digital Image Watermarking
IH '99 Proceedings of the Third International Workshop on Information Hiding
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A Contrast-Sensitive Visible Watermarking Scheme
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Region of Interest Fragile Watermarking for Image Authentication
IMSCCS '06 Proceedings of the First International Multi-Symposiums on Computer and Computational Sciences - Volume 1 (IMSCCS'06) - Volume 01
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Pattern Recognition Letters
A survey of watermarking algorithms for image authentication
EURASIP Journal on Applied Signal Processing
Adaptive Visible Watermarking of Images
ICMCS '99 Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2
Analysis and design of secure watermark-based authentication systems
IEEE Transactions on Information Forensics and Security
A Novel Image Recovery Algorithm for Visible Watermarked Images
IEEE Transactions on Information Forensics and Security
Attacking visible watermarking schemes
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The effects of a visual fidelity criterion of the encoding of images
IEEE Transactions on Information Theory
Visibility of wavelet quantization noise
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Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
Multipurpose watermarking for image authentication and protection
IEEE Transactions on Image Processing
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
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IEEE Transactions on Image Processing
A Semi-Fragile Lossless Digital Watermarking Scheme Based on Integer Wavelet Transform
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A game-theoretic system security design for the visible watermarking
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A game-theoretic framework for the security system of visible watermarking
Expert Systems with Applications: An International Journal
Multimedia Tools and Applications
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A novel visible watermarking algorithm based on the content and contrast aware (COCOA) technique with the consideration of Human Visual System (HVS) model is presented in this study. In order to determine the optimal watermark locations and strength at the watermark embedding stage, the COCOA visible watermarking utilizes the global and local characteristics of the host and watermark images in the discrete wavelet transform (DWT) domain. To achieve the best tradeoff between the embedding energy of watermark and the perceptual translucence, the utilization of contrast-sensitive function, noise visible function of perceptual model, and the basis function amplitudes of DWT coefficients are fine tuned, for the best quality of perceptual translucence and noise reduction of the COCOA algorithm. The experimental results demonstrate that COCOA technique not only provides high PSNR values for the watermarked images, but also preserves the watermark visibility under various signal processing operations, especially the watermark removal attack.