Utilizations of Reversible Lossless Data Hiding Techniques in Video Sequences

Abstract

This paper propose a method of hiding data in selected video sequence. The proposed algorithm is a hybrid hiding scheme based on discrete wavelet transform (DWT) and histogram shifting for lossless data hiding . In this algorithm, First pre-processes the video sequence and frame conversion is to be done, the secret message is not embedded directly on the wavelet coefficients but by shifting parts of histogram of high frequency subbands to make space for data hiding and Finally, the secret message is extracted from the stego-video.This technique satisfy both imperceptibility and robustness. Experimental results show that this scheme outperforms the prior arts in terms of a larger payload (at the same PSNR) or a higher PSNR (at the same payload).