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A video zero-watermark algorithm is proposed based on Contourlet transform, which has been hailed as the "real" tool to capture the geometric structure of the two-dimensional signal. The algorithm uses Contourlet transform to deal with each frame image of the original video, and select the low frequency coefficients to construct the zero-watermark. The experimental results show that the algorithm makes the imperceptibility and robustness have a good compromise and can resist MPEG compression and other common video attack effectively.

A Video Zero-watermark Algorithm Based on the Contourlet Transform