Abstract. In this paper, a digital video watermarking algorithm is proposed. Wepresent a novel DWT-based blind digital video watermarking scheme with
scrambled watermark and error correcting code. Our scheme embeds different
parts of a single watermark into different scenes of a video under the wavelet
domain. To increase robustness of the scheme, the watermark is refined by the
error correcting code, while the correcting code is embedded as watermark in
audio channel. Our video watermarking algorithm is robust against the attacks
of frame dropping, averaging and statistical analysis, which were not solved
effectively in the past. Furthermore, it allows blind retrieval of embedded
watermark which does not need the original video; and the watermark is
perceptually invisible. The algorithm design, evaluation, and experimentation
of the proposed scheme are described in this paper.
1. Introduction
We have seen an explosion of data change in the Internet and the extensive use of
digital media. Consequently, digital data owners can transfer multimedia documents
across the Internet easily. Therefore, there is an increase in the concern over copyright
protection of digital content [1, 2, 3]. In the early days, encryption and control access
techniques were employed to protect the ownership of media. They do not, however,
protect against unauthorized copying after the media have been successfully
transmitted and decrypted. Recently, the watermark techniques are utilized to
maintain the copyright [4, 5, 6]. In this paper, we focus on engaging the digital
watermarking techniques to protect digital multimedia intellectual copyright and
propose a new algorithm for video watermarking.
Video watermarking introduces some issues not present in image watermarking.
Due to large amounts of data and inherent redundancy between frames, video signals
are highly susceptible to pirate attacks, including frame averaging, frame dropping,
frame swapping, statistical analysis, etc [4]. However, the currently proposed