Watermarking method considering intra prediction mode in H264 / AVC

Abstract

In this paper, we propose a new watermarking method for intra-frames of H.264/AVC coded video. Intraprediction coding makes distortion by watermarking spread into next and following blocks. The spread produces prediction error variance increase and image degradation of watermarked digital contents. In the proposed method, coding reference blocks are given 1-point of weight when the block is used. Then, a watermark is preferentially embedded in 0-point blocks. By experiments, we show that this method prevents the prediction error variance increase and image degradation by the spread from being produced.