Robust Watermarking Algorithm based on DCT Two-dimensional Histogram Shifting

In order to solve the robustness problem of existing video watermarking algorithms, we propose a robust watermarking algorithm based on DCT coefficients. The algorithm groups the DCT coefficients generated by H.264 video coding according to the embedding efficiency and embeds the watermark by a reversible method to achieve watermark extraction at the decoding end and lossless recovery of the original video. The experimental results show that the proposed algorithm access great robustness, and the normalized correlation coefficient of each carrier video is above 0.949.