DWT and GA-PSO based novel watermarking for videos using audio watermark

Abstract

This paper presents a digital video watermarking scheme that can embed invisible and robust watermark information into the video streams of MPEG-1, MPEG-2, H.264/AVC, MPEG-4 standards. Watermark embedding process is in Discrete Wavelet Domain. Trade off between transparency and robustness is considered as optimization problem and is solved by Genetic Algorithm - Particle Swarm Optimization (GA-PSO) based hybrid optimization technique. An audio signal is converted into 9 bit planes by using bit plane slicing and then embedded into the frames of video signals as watermark. The performance evaluation results based on the Peak Signal to Noise Ratio (PSNR) and Normalized Correlation (NC) confirm that the proposed video processing method shows reliable improvements for various sequences compared to existing ones for geometrical attacks like rotation and cropping.