Hybrid DWT-DCT Video Watermarking Algorithm for Copyright Protection of Multimedia Color Videos

Abstract: In this paper, we propose a new blind video watermarking algorithm for the copyright protection of multimedia colour videos. The novelty in the presented approach consists in designing a hybrid Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT) based digital video watermarking. The distortion caused by watermarking is assessed by using peak signal to noise ratio (PSNR) and similarity structure index measure (SSIM) and robustness against different types of attacks have been assessed using Stirmark. The proposed video watermarking algorithm provides better imperceptibility in harmony with the human visual system and offers higher robustness against signal processing attacks. Keywords: Video watermarking; Copyright protection; DWT; DCT; PSNR; SSIM.