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Copyright protection of digital media is still a challenge today. In this paper we proposed a robust watermarking method for embedding copyright information in spatial domain of the color image. Each byte of the data has been encrypted with a secret key and the data bits has been transposed on the cover media by using the well known MD5 Hash function with the combination of the secret key, and thus...
Image scrambling is a widely applied in digital image watermark technology. Therefore, Arnold transform is often used, but its security is not enough because the form is the only and public. In this paper, an improved Arnold transform is present; it is realized in computer through proving. We can choose different transform coefficient and times in image scrambling, it is difficult to restore the original...
Exponential growth of the internet provided new ways of propagating and sharing digital video data. Thus ownership protection of the video data is critical and important in this era. Though there are many standards and technologies available to efficiently share the digital video, almost all of them lack ownership protection mechanism. This paper proposes new compressed domain secure digital watermarking...
The paper deals with information hiding in general and special focus is given to information content hiding in still images. A solution of information hiding of protected part of an image within the image itself is also presented. Three approaches are proposed - digital watermarking, DCT coefficients flipping and cryptography. Some experimental results are shown and advantages and drawbacks are also...
The important role information hiding technology plays in the network information security system has been illustrated in paper on the basis of the information hiding principle, the characteristics and its key technologies. Then, the feature and effect of hiding information in network environment were discussed, as well as several hiding technique and detecting technique.
The large-scale communication of multimedia data on Internet motivates the protection of digital information against illegal duplication and manipulation. Advances that facilitate electronic publishing and commerce also heighten threats of intellectual property theft and unlawful tampering. This work is concerned with the perceptual models used for data protection, secrete communication, author's...
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