Reversible Video Data Hiding Using Zero QDCT Coefficient-Pairs
share
There exist many zero quantized discrete cosine transform (QDCT) coefficients in transform domain for video compression standards, such as H.264/AVC. Besides, the modification, i.e., increasing or decreasing by 1 on zero QDCT coefficients of high frequency area, has an insignificant effect on visual quality of H.264/AVC video. Thus, in this paper, we propose a novel video-based reversible data hiding method by using a mapping rule and zero QDCT coefficient-pairs from high frequency. The proposed method can obtain high embedding capacity and low distortion in terms of Peak-signal-noise-to-ratio (PSNR). Experimental results have demonstrated the payload-distortion performance of the proposed reversible data hiding method. The proposed scheme indeed has an advantage in the embedding capacity when compared with the related schemes.
READ FULL TEXT
