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This paper proposes a Digital Right Management model using both cryptography and digital watermarking technology integratively. This model encrypts digital content with high-performance symmetric key, and uses robust watermarking and fragile watermarking separately to embed copyright information, license encrypted with machine fingerprint and integrity mark into the digital content sequentially according...
In this paper, we propose a new method that could reveal some traces that were left in the tampered digital images without using watermarking technique. Our method is based on detecting the presence of feather operation, which is particularly useful to create a smooth transition between the selected region and its surroundings. The similarity of pixel neighborhood is used as weight coefficient to...
An adaptive watermarking capacity analysis in the spatial domain and wavelet domain is proposed. The relationship between the watermarking capacity and the watermark detection error rate is also discussed. The research of watermark detection error rate will help us finding the ways to embed more watermark messages while keeping an acceptable detection error rate, and it is useful for the design of...
This paper presents a blind watermarking algorithm based on the Hopfield neural network. The watermarking capacity of this algorithm is discussed. According to the research, the attraction basin of neural network determines the watermarking capacity.
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