DCT based Reversible Information Hiding Scheme For Video using Quantized Blocks

Abstract

The reversible data hiding is used for lossless and reversible streganography scheme for hiding secret data in quantized descret cosine transformation (DCT) blocks. The requirement of reversibility may lead to more modifications to the cover content which result in the tradeoff between the visual quality and hiding capacity. In this paper we propose a reversible information hiding scheme for video, to embeds the information into non-zero AC coefficients of quantized DCT blocks. The experimental results show that the proposed scheme improves both the visual quality and hiding capacity.