A Video Watermarking Algorithm Based on Quantification in H.264
Mi Jiang · IEEE Software · 2013
H.264 standard video provides high efficiency and better visual quality, and soon became popular digital video formats,therefore the copyright protection and authentication based on the H.264 video is increasing. This paper proposes a blind video watermarking algorithm based on H.264 standard. This algorithm, designed for I-frame of H.264 stream, obtain original macroblock image information by reading the bit stream. Then, four intermediate frequency coefficients are selected in each 8*8 DCT block, which is quantified the relative relationship for watermark embedding. This approach not only improves the invisibility, but also ensures the robustness. The experimental results demonstrate that this algorithm keep high performance in resisting attacks, meanwhile, ensured the video quality after watermark embedding.