Video watermarking algorithm based on pseudo 3D DCT and quantization index modulation

[[abstract]]In this paper, we propose an effective watermarking algorithm based on a pseudo 3D DCT and quantization index modulation for vide against the attacks. The watermark is principally inserted into the uncompressed domain by adjusting the correlation between DCT coefficients of the selected blocks, and the extraction of watermark is blind. This approach includes a pseudo 3D DCT, watermark embedding, and extraction. A pseudo 3D DCT obtained by taking twice DCT transformations will be firstly utilized to calculate the embedding messages. Using the quantization index modulation, we insert the watermark into the quantization regions from the successive frames and record the relative information to create a secret embedding key. This secret embedding key will further use to the extraction procedure. Experimental results demonstrate that our proposed method can gain a good performance in transparency and robustness against filtering, compression, and noise attacks.[[fileno]]2030148030021[[department]]電機工程學