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A fast video watermarking algorithm using dual tree complex wavelet transform
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DOI：10.1007/s11042-018-6892-6.png)
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Abstract
En 中文
Illegal camcording as the most common source of video piracy, is the main concern of the film production companies. With the increased speed and convenience of access to the Internet and video sharing services, the distribution of pirated video copies is more than easy. Digital video watermarking is one of the possible ways to prevent the illegal recording and distribution of videos. In this paper, a blind digital video watermarking method based on Dual-Tree Complex Wavelet Transform (DTCWT) is proposed. Here, the generated watermark is embedded in the low frequency coefficients of the chrominance channel of the video frames. The watermark is generated in a way that the detection system does not need to know the size of the original video. To reduce the computational complexity of the proposed method, the embedding process is equivalently done in the spatial domain. The proposed method is compared to the state-of-art methods against different attacks. Experimental results show that the proposed method is more robust against various attacks while maintaining the perceptual quality of the original video significantly better than the compared methods. Also the proposed method is evaluated in terms of computational complexity which reveals that the proposed method performs faster than the compared methods.
Keywords:
Video watermarking
Video piracy
Dual-tree complex wavelet transform
Robustness against comcording
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