IBM Systems Journal
A DCT-domain system for robust image watermarking
Signal Processing
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
Hidden digital watermarks in images
IEEE Transactions on Image Processing
Pruning SIFT for scalable near-duplicate image matching
ADC '07 Proceedings of the eighteenth conference on Australasian database - Volume 63
Efficient general print-scanning resilient data hiding based on uniform log-polar mapping
IEEE Transactions on Information Forensics and Security
Discovery of image versions in large collections
MMM'07 Proceedings of the 13th International conference on Multimedia Modeling - Volume Part II
A robust watermarking algorithm using attack pattern analysis
ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
Genetic algorithm-based watermarking in discrete wavelet transform domain
ICIC'06 Proceedings of the 2006 international conference on Intelligent Computing - Volume Part I
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Digital image watermark is an invisible mark embedded in an image that can be used for copyright protection. The current paper proposes a new watermarking scheme by improving image normalization based watermarking (INW). Image normalization is based on the moments of the image, however, in general, RST attacks bring the image boundary cropping and the moments are not preserved original ones. Thereafter the normalized images of before and after are not same form. To solve the cropping problem of INW, Invariant Centroid (IC) is proposed and the only central region(R), which has less cropping possibility by RST, is used for normalization. In addition, the watermark is embedded and detected in the normalized form of the image. Experimental results demonstrated that the proposed watermarking scheme is robust to RST attacks with cropping.