Abstract
Watermarking is a component of inserting data into the multimedia, for example, image, audio or video. This study propose a method for video watermarking using hybrid DWT-SVD to protect the copy right of images. In order to improve the efficiency of video watermarking two main processes are used namely 1) watermark embedding process and 2) watermark extraction process. Before embedding process the input video sequence convert into number of frames. Here Singular Value Decomposition (SVD) transforms and DWT is applied in watermark image. The improved artificial bee colony algorithm is proposed for generating random frame for the embedding process. The result obtain from the watermark embedding process is the watermark video sequence. Next watermark extraction process is carried out. It is the reverse process of watermark embedding. In watermark extraction process, it extracts the watermark image from the watermark video sequence. The proposed method is implemented in MATLAB.
Highlights
The rapid growth of multimedia content in digital form has increased the need to develop secure methods for legal distribution of the digital content
There is an increase in the concern over copyright protection of digital content (Piva et al, 2002; Lu et al, 2001)
Watermarking is the process of embedding data into a multimedia element such as image, audio or video
Summary
The rapid growth of multimedia content in digital form has increased the need to develop secure methods for legal distribution of the digital content. An ideal domain which obtains the temporal information without losing the spatial information has Robustness: It should be impossible to manipulate the watermark by intentional or unintentional operations on the uncompressed or compressed video, at the same time, degrading the perceived quality of the digital video significantly thereby reducing its commercial value. Such operations are, for example, addition of signals, cropping, lossy compression, frame averaging, frame dropping and collusion.
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