A Visual Model for Estimating Perceptual Redundancy Inherent in Color Image
PCM '02 Proceedings of the Third IEEE Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
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ACM Transactions on Design Automation of Electronic Systems (TODAES)
Quaternion image watermarking using the spatio-chromatic fourier coefficients analysis
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
International Journal of Knowledge-based and Intelligent Engineering Systems
Human visual system based adaptive digital image watermarking
Signal Processing
Color PCA eigenimages and their application to compression and watermarking
Image and Vision Computing
A watermarking system based on complementary quantization
SSIP'06 Proceedings of the 6th WSEAS International Conference on Signal, Speech and Image Processing
FPGA Based Implementation of Real-Time Video Watermarking Chip
ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
Adaptive color image watermarking based on a modified improved pixel-wise masking technique
Computers and Electrical Engineering
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Journal of Network and Computer Applications
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Proceedings of the 1st International Conference on Intelligent Semantic Web-Services and Applications
A perceptually tuned watermarking scheme for color images
IEEE Transactions on Image Processing
An adaptive steganographic method based on the measurement of just noticeable distortion profile
Image and Vision Computing
Time-frequency analysis and its application in digital watermarking
EURASIP Journal on Advances in Signal Processing - Special issue on time-frequency analysis and its applications to multimedia signals
A blind image watermarking using multiresolution visibility map
Journal of Global Optimization
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Proceedings of the 2011 International Conference on Intelligent Semantic Web-Services and Applications
Using space-time coding for watermarking color images
ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part I
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PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Improved method of spread spectrum watermarking techniques using pixel-correlations
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part II
Using Watermarking Techniques to prove Rightful Ownership of Web Images
International Journal of Information Technology and Web Engineering
Perceptual watermarking using a new Just-Noticeable-Difference model
Image Communication
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We present a perceptual model for hiding a spread-spectrum watermark of variable amplitude and density in an image. The model takes into account the sensitivity and masking behavior of the human visual system by means of a local isotropic contrast measure and a masking model. We compare the insertion of this watermark in luminance images and in the blue channel of color images. We also evaluate the robustness of such a watermark with respect to its embedding density. Our results show that this approach facilitates the insertion of a more robust watermark while preserving the visual quality of the original. Furthermore, we demonstrate that the maximum watermark density generally does not provide the best detection performance