Practical computer vision using C
Practical computer vision using C
Digital watermarking
Hide and Seek: An Introduction to Steganography
IEEE Security and Privacy
Intelligent Watermarking Techniques (Innovative Intelligence)
Intelligent Watermarking Techniques (Innovative Intelligence)
Rotation, scale, and translation resilient watermarking for images
IEEE Transactions on Image Processing
Geometrically invariant watermarking using feature points
IEEE Transactions on Image Processing
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Digital copyright protection has become increasingly important in recent times due to the rapid growth of the Internet and the proliferation of P2P technologies. Copyright protection of digital images and videos are of particular interest since they can easily be pirated and distributed illegally across networks. Existing watermarking methods can embed a signature into a digital image and tend to be robust against signal noise and but less so against geometric transforms. Methods that are more robust against geometric manipulation are often implemented at great computational cost. This paper proposes a lower cost method using point patterns inspired in part by automated star trackers used in astronomy. The method is evaluated and presents some advantages over existing approaches. Weaknesses of the method and areas for future work are also discussed.