Some Researches on Digital Watermarking Calculation of Robustness Based on WT(Wavelet Transform) Timeline
Zhigang Sun · Enterprise Science and Technology & Development · 2010
Targeting on the common attack on the watermarking of the video and video compression attack,the article sets forth digital watermarking calculation of robustness based on WT(Wavelet Transform) timeline.The method chooses eight frames consecutively from each scene bedded with watermark.And the calculation of the three fold timeline WT makes hereby a low frequency frame bedding the watermark into the low frequency data of DCT with self adaptive way to ensure the anti attack strength of the watermark.The result shows the watermark system of the video is invisible with great robustness and safety.