Video Watermarking Papers

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The goal of this application is to detect any alterations and modifications made to an image.

The three pictures below illustrate this application.

But it would also be hidden as an invisible watermark in the passport photo.

If anyone tries to tamper with the passport by replacing the photo, it would be possible to detect the change by scanning the passport and verifying the name hidden in the photo.

On the left is an example of a protected identity card.

The identity number "123456789" is written in clear text on the card and hidden as a digital watermark in the identity photo.

Such applications are especially of interest for official documents, such as contracts.

For example, the digital watermark can be used to embed the name of the lawyer or other key monetary amounts.

The picture on the left shows a printing machine from Intercard for various types of plastic cards (Courtesy of Intercard, Switzerland).

Another application is the authentication of image content.

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    If we consider a video segment containing 25 frames 1s in PAL, the maximum number of coefficients is the number of pixels n. A code with a given block length k and rate r = k=n will have an energy…

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    A hybrid watermarking scheme for H.264/AVC video Gang Qiu, Pina Marziliano, Anthony T. S. Ho School of Electrical & Electronic Engineering Nanyang Technological University…

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    We describe a digital watermarking method for use in audio, image, video and multimedia data. We argue that a watermark must be placed in perceptually significant components of a signal if it is to be robust to common signal distortions and malicious attack.…

  • On the Effectiveness of Visible Watermarks
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    Compressed video steams. Kankanhalli and Ramakrish-nan 8 used statistics of block DCT coefficients to deter-mine the watermark embedding coefficients for each block. They later extended it to account for the texture sensitivity in the human visual system to better preserve the perceptual quality of the images 14. Hu and Kwong 6 implemented adaptive visible watermarking in the wavelet.…

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  • Digital Video Watermarking Using Dwt and Pca - IJCER
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    Digital Video Watermarking Using Dwt and Pca Supriya A. Patil 1, Prof. Navin Srivastava 2 1 M Tech Student Dept of Electronics Engineering, B. V. D. Pune, India 2 Prof. Dept of Electronics Engineering, B. V. D. Pune, India I. INTRODUCTION The use of digital multimedia system content is increased large amount of data is transfer and distributed 1 easily. Copying of digital media has.…

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    Abstract The digital watermarking technology is the most active topic in image protection recently. In this paper, a digital watermarking algorithm based on Wavelet transform has been developed, which is implemented in MEX from MATLAB to explore a new area of research in digital media.…

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