Spectral compression of mesh geometry
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Managing Copyright in Open Networks
IEEE Internet Computing
PCA-based web page watermarking
Pattern Recognition
Digital Video Watermarking Based on Principal Component Analysis
ICICIC '07 Proceedings of the Second International Conference on Innovative Computing, Informatio and Control
Color PCA eigenimages and their application to compression and watermarking
Image and Vision Computing
Image watermarking scheme using nonnegative matrix factorization and wavelet transform
Expert Systems with Applications: An International Journal
Robust watermarking based on DWT and nonnegative matrix factorization
Computers and Electrical Engineering
A new robust reference watermarking scheme based on DWT-SVD
Computer Standards & Interfaces
A new video watermarking algorithm based on 1D DFT and Radon transform
Signal Processing
Improving the robustness of DCT-based image watermarking against JPEG compression
Computer Standards & Interfaces
IEEE Transactions on Image Processing
A novel DCT domain CRT-based watermarking scheme for image authentication surviving JPEG compression
Digital Signal Processing
A perceptually tuned watermarking scheme for color images
IEEE Transactions on Image Processing
Robust Image Watermarking Using Feature Points and Image Normalization
CERMA '10 Proceedings of the 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference
A Robust Watermarking Algorithm Based on Image Normalization
VCON '10 Proceedings of the 2010 Second Vaagdevi International Conference on Information Technology for Real World Problems
Blind and robust audio watermarking scheme based on SVD-DCT
Signal Processing
Region based QIM digital watermarking scheme for image database in DCT domain
Computers and Electrical Engineering
Hybrid contourlet-DCT based robust image watermarking technique applied to medical data management
PReMI'11 Proceedings of the 4th international conference on Pattern recognition and machine intelligence
An improved SVD-based watermarking technique for copyright protection
Expert Systems with Applications: An International Journal
Robust digital image watermarking in DWT-SVD domain
AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
A 2DPCA-Based video watermarking scheme for resistance to temporal desynchronization
ISNN'06 Proceedings of the Third international conference on Advances in Neural Networks - Volume Part III
A feature-based robust digital image watermarking scheme
IEEE Transactions on Signal Processing
Multipurpose watermarking for image authentication and protection
IEEE Transactions on Image Processing
Lightweight Detection of Additive Watermarking in the DWT-Domain
IEEE Transactions on Image Processing
Hi-index | 12.05 |
This paper proposes a novel robust digital color image watermarking algorithm which combines color image feature point extraction, shape image normalization and QPCA (quaternion principal component algorithm) based watermarking embedding (QWEMS) and extraction (QWEXS) schemes. The feature point extraction method called Mexican Hat wavelet scale interaction is used to select the points which can survive various attacks and also be used as reference points for both watermarking embedding and extraction. The normalization shape image of the local quadrangle image of which the four corners are feature points of the original image is invariant to translation, rotation, scaling and skew, by which we can obtain the relationship between the feature images of the original image and the watermarked image which has suffered with geometrical attacks. The proposed QWEMS and QWEXS schemes which denote the color pixel as a pure quaternion and the feature image as a quaternion matrix can improve the robustness and the imperceptibility of the embedding watermarking. To simplify the eigen-decomposition procedure of the quaternion matrix, we develop a calculation approach with which the eigen-values and the corresponding eigen-vectors of the quaternion matrix can be computed. A binary watermark image is embedded in the principal component coefficients of the feature image. Simulation results demonstrate that the proposed algorithm can survive a variety of geometry attacks, i.e. translation, rotation, scaling and skew, and can also resist the attacks of many signal processing procedures, for example, moderate JPEG compression, salt and pepper noise, Gaussian filtering, median filtering, and so on.